diff --git a/swagger_parser/lib/src/generator/templates/dart_dart_mappable_dto_template.dart b/swagger_parser/lib/src/generator/templates/dart_dart_mappable_dto_template.dart
index 1eb69c07c..5af797699 100644
--- a/swagger_parser/lib/src/generator/templates/dart_dart_mappable_dto_template.dart
+++ b/swagger_parser/lib/src/generator/templates/dart_dart_mappable_dto_template.dart
@@ -183,7 +183,7 @@ String _fieldsToString(
   );
   return sortedByRequired
       .mapIndexed(
-        (i, e) =>
+        (i, e) => '${descriptionComment(e.description, tab: '  ')}'
             '${_jsonKey(e)}${indentation(2)}final ${_renameUnionTypes(e.toSuitableType(ProgrammingLanguage.dart, useMultipartFile: useMultipartFile))} ${e.name};',
       )
       .join('\n');
diff --git a/swagger_parser/test/e2e/tests/xof/discriminated_any_of_complete_mapping_mappable/expected_files/models/cat.dart b/swagger_parser/test/e2e/tests/xof/discriminated_any_of_complete_mapping_mappable/expected_files/models/cat.dart
index c46d71a71..6711bc768 100644
--- a/swagger_parser/test/e2e/tests/xof/discriminated_any_of_complete_mapping_mappable/expected_files/models/cat.dart
+++ b/swagger_parser/test/e2e/tests/xof/discriminated_any_of_complete_mapping_mappable/expected_files/models/cat.dart
@@ -15,6 +15,8 @@ class Cat with CatMappable {
     required this.mewCount,
   });
   final CatType type;
+
+  /// Number of times the cat meows.
   final int mewCount;
 
   static Cat fromJson(Map<String, dynamic> json) =>
diff --git a/swagger_parser/test/e2e/tests/xof/discriminated_any_of_complete_mapping_mappable/expected_files/models/dog.dart b/swagger_parser/test/e2e/tests/xof/discriminated_any_of_complete_mapping_mappable/expected_files/models/dog.dart
index 205b1328e..576eebb3c 100644
--- a/swagger_parser/test/e2e/tests/xof/discriminated_any_of_complete_mapping_mappable/expected_files/models/dog.dart
+++ b/swagger_parser/test/e2e/tests/xof/discriminated_any_of_complete_mapping_mappable/expected_files/models/dog.dart
@@ -15,6 +15,8 @@ class Dog with DogMappable {
     required this.barkSound,
   });
   final DogType type;
+
+  /// The sound of the dog's bark.
   final String barkSound;
 
   static Dog fromJson(Map<String, dynamic> json) =>
diff --git a/swagger_parser/test/e2e/tests/xof/discriminated_any_of_complete_mapping_mappable/expected_files/models/human.dart b/swagger_parser/test/e2e/tests/xof/discriminated_any_of_complete_mapping_mappable/expected_files/models/human.dart
index 0f86adc3a..88bbc7e3e 100644
--- a/swagger_parser/test/e2e/tests/xof/discriminated_any_of_complete_mapping_mappable/expected_files/models/human.dart
+++ b/swagger_parser/test/e2e/tests/xof/discriminated_any_of_complete_mapping_mappable/expected_files/models/human.dart
@@ -15,6 +15,8 @@ class Human with HumanMappable {
     required this.job,
   });
   final HumanType type;
+
+  /// The job of the human.
   final String job;
 
   static Human fromJson(Map<String, dynamic> json) =>
diff --git a/swagger_parser/test/e2e/tests/xof/discriminated_one_of.3.0_mappable/expected_files/models/cat.dart b/swagger_parser/test/e2e/tests/xof/discriminated_one_of.3.0_mappable/expected_files/models/cat.dart
index c46d71a71..6711bc768 100644
--- a/swagger_parser/test/e2e/tests/xof/discriminated_one_of.3.0_mappable/expected_files/models/cat.dart
+++ b/swagger_parser/test/e2e/tests/xof/discriminated_one_of.3.0_mappable/expected_files/models/cat.dart
@@ -15,6 +15,8 @@ class Cat with CatMappable {
     required this.mewCount,
   });
   final CatType type;
+
+  /// Number of times the cat meows.
   final int mewCount;
 
   static Cat fromJson(Map<String, dynamic> json) =>
diff --git a/swagger_parser/test/e2e/tests/xof/discriminated_one_of.3.0_mappable/expected_files/models/dog.dart b/swagger_parser/test/e2e/tests/xof/discriminated_one_of.3.0_mappable/expected_files/models/dog.dart
index 205b1328e..576eebb3c 100644
--- a/swagger_parser/test/e2e/tests/xof/discriminated_one_of.3.0_mappable/expected_files/models/dog.dart
+++ b/swagger_parser/test/e2e/tests/xof/discriminated_one_of.3.0_mappable/expected_files/models/dog.dart
@@ -15,6 +15,8 @@ class Dog with DogMappable {
     required this.barkSound,
   });
   final DogType type;
+
+  /// The sound of the dog's bark.
   final String barkSound;
 
   static Dog fromJson(Map<String, dynamic> json) =>
diff --git a/swagger_parser/test/e2e/tests/xof/discriminated_one_of.3.0_mappable/expected_files/models/human.dart b/swagger_parser/test/e2e/tests/xof/discriminated_one_of.3.0_mappable/expected_files/models/human.dart
index 0f86adc3a..88bbc7e3e 100644
--- a/swagger_parser/test/e2e/tests/xof/discriminated_one_of.3.0_mappable/expected_files/models/human.dart
+++ b/swagger_parser/test/e2e/tests/xof/discriminated_one_of.3.0_mappable/expected_files/models/human.dart
@@ -15,6 +15,8 @@ class Human with HumanMappable {
     required this.job,
   });
   final HumanType type;
+
+  /// The job of the human.
   final String job;
 
   static Human fromJson(Map<String, dynamic> json) =>
diff --git a/swagger_parser/test/e2e/tests/xof/fallback_union_mappable/expected_files/models/cat.dart b/swagger_parser/test/e2e/tests/xof/fallback_union_mappable/expected_files/models/cat.dart
index c46d71a71..6711bc768 100644
--- a/swagger_parser/test/e2e/tests/xof/fallback_union_mappable/expected_files/models/cat.dart
+++ b/swagger_parser/test/e2e/tests/xof/fallback_union_mappable/expected_files/models/cat.dart
@@ -15,6 +15,8 @@ class Cat with CatMappable {
     required this.mewCount,
   });
   final CatType type;
+
+  /// Number of times the cat meows.
   final int mewCount;
 
   static Cat fromJson(Map<String, dynamic> json) =>
diff --git a/swagger_parser/test/e2e/tests/xof/fallback_union_mappable/expected_files/models/dog.dart b/swagger_parser/test/e2e/tests/xof/fallback_union_mappable/expected_files/models/dog.dart
index 205b1328e..576eebb3c 100644
--- a/swagger_parser/test/e2e/tests/xof/fallback_union_mappable/expected_files/models/dog.dart
+++ b/swagger_parser/test/e2e/tests/xof/fallback_union_mappable/expected_files/models/dog.dart
@@ -15,6 +15,8 @@ class Dog with DogMappable {
     required this.barkSound,
   });
   final DogType type;
+
+  /// The sound of the dog's bark.
   final String barkSound;
 
   static Dog fromJson(Map<String, dynamic> json) =>
diff --git a/swagger_parser/test/e2e/tests/xof/fallback_union_mappable/expected_files/models/human.dart b/swagger_parser/test/e2e/tests/xof/fallback_union_mappable/expected_files/models/human.dart
index 0f86adc3a..88bbc7e3e 100644
--- a/swagger_parser/test/e2e/tests/xof/fallback_union_mappable/expected_files/models/human.dart
+++ b/swagger_parser/test/e2e/tests/xof/fallback_union_mappable/expected_files/models/human.dart
@@ -15,6 +15,8 @@ class Human with HumanMappable {
     required this.job,
   });
   final HumanType type;
+
+  /// The job of the human.
   final String job;
 
   static Human fromJson(Map<String, dynamic> json) =>
diff --git a/swagger_parser/test/e2e/tests/xof/non_discriminated_any_of_deferred_mappable/expected_files/models/cat.dart b/swagger_parser/test/e2e/tests/xof/non_discriminated_any_of_deferred_mappable/expected_files/models/cat.dart
index 7f62a7dd6..b5b93df27 100644
--- a/swagger_parser/test/e2e/tests/xof/non_discriminated_any_of_deferred_mappable/expected_files/models/cat.dart
+++ b/swagger_parser/test/e2e/tests/xof/non_discriminated_any_of_deferred_mappable/expected_files/models/cat.dart
@@ -11,6 +11,8 @@ class Cat with CatMappable {
   const Cat({
     required this.mewCount,
   });
+
+  /// Number of times the cat meows.
   final int mewCount;
 
   static Cat fromJson(Map<String, dynamic> json) =>
diff --git a/swagger_parser/test/e2e/tests/xof/non_discriminated_any_of_deferred_mappable/expected_files/models/dog.dart b/swagger_parser/test/e2e/tests/xof/non_discriminated_any_of_deferred_mappable/expected_files/models/dog.dart
index e32ae3a4f..5ad5f83e3 100644
--- a/swagger_parser/test/e2e/tests/xof/non_discriminated_any_of_deferred_mappable/expected_files/models/dog.dart
+++ b/swagger_parser/test/e2e/tests/xof/non_discriminated_any_of_deferred_mappable/expected_files/models/dog.dart
@@ -11,6 +11,8 @@ class Dog with DogMappable {
   const Dog({
     required this.barkSound,
   });
+
+  /// The sound of the dog's bark.
   final String barkSound;
 
   static Dog fromJson(Map<String, dynamic> json) =>
diff --git a/swagger_parser/test/e2e/tests/xof/non_discriminated_any_of_deferred_mappable/expected_files/models/human.dart b/swagger_parser/test/e2e/tests/xof/non_discriminated_any_of_deferred_mappable/expected_files/models/human.dart
index 4855d8614..0ccea0256 100644
--- a/swagger_parser/test/e2e/tests/xof/non_discriminated_any_of_deferred_mappable/expected_files/models/human.dart
+++ b/swagger_parser/test/e2e/tests/xof/non_discriminated_any_of_deferred_mappable/expected_files/models/human.dart
@@ -11,6 +11,8 @@ class Human with HumanMappable {
   const Human({
     required this.job,
   });
+
+  /// The job of the human.
   final String job;
 
   static Human fromJson(Map<String, dynamic> json) =>
diff --git a/swagger_parser/test/e2e/tests/xof/non_discriminated_one_of_deferred_mappable/expected_files/models/cat.dart b/swagger_parser/test/e2e/tests/xof/non_discriminated_one_of_deferred_mappable/expected_files/models/cat.dart
index 7f62a7dd6..b5b93df27 100644
--- a/swagger_parser/test/e2e/tests/xof/non_discriminated_one_of_deferred_mappable/expected_files/models/cat.dart
+++ b/swagger_parser/test/e2e/tests/xof/non_discriminated_one_of_deferred_mappable/expected_files/models/cat.dart
@@ -11,6 +11,8 @@ class Cat with CatMappable {
   const Cat({
     required this.mewCount,
   });
+
+  /// Number of times the cat meows.
   final int mewCount;
 
   static Cat fromJson(Map<String, dynamic> json) =>
diff --git a/swagger_parser/test/e2e/tests/xof/non_discriminated_one_of_deferred_mappable/expected_files/models/dog.dart b/swagger_parser/test/e2e/tests/xof/non_discriminated_one_of_deferred_mappable/expected_files/models/dog.dart
index e32ae3a4f..5ad5f83e3 100644
--- a/swagger_parser/test/e2e/tests/xof/non_discriminated_one_of_deferred_mappable/expected_files/models/dog.dart
+++ b/swagger_parser/test/e2e/tests/xof/non_discriminated_one_of_deferred_mappable/expected_files/models/dog.dart
@@ -11,6 +11,8 @@ class Dog with DogMappable {
   const Dog({
     required this.barkSound,
   });
+
+  /// The sound of the dog's bark.
   final String barkSound;
 
   static Dog fromJson(Map<String, dynamic> json) =>
diff --git a/swagger_parser/test/e2e/tests/xof/non_discriminated_one_of_deferred_mappable/expected_files/models/human.dart b/swagger_parser/test/e2e/tests/xof/non_discriminated_one_of_deferred_mappable/expected_files/models/human.dart
index 4855d8614..0ccea0256 100644
--- a/swagger_parser/test/e2e/tests/xof/non_discriminated_one_of_deferred_mappable/expected_files/models/human.dart
+++ b/swagger_parser/test/e2e/tests/xof/non_discriminated_one_of_deferred_mappable/expected_files/models/human.dart
@@ -11,6 +11,8 @@ class Human with HumanMappable {
   const Human({
     required this.job,
   });
+
+  /// The job of the human.
   final String job;
 
   static Human fromJson(Map<String, dynamic> json) =>
diff --git a/swagger_parser/test/e2e/tests/xof/union_inline_and_refs_any_of_deferred_mappable/expected_files/models/cat.dart b/swagger_parser/test/e2e/tests/xof/union_inline_and_refs_any_of_deferred_mappable/expected_files/models/cat.dart
index 7f62a7dd6..b5b93df27 100644
--- a/swagger_parser/test/e2e/tests/xof/union_inline_and_refs_any_of_deferred_mappable/expected_files/models/cat.dart
+++ b/swagger_parser/test/e2e/tests/xof/union_inline_and_refs_any_of_deferred_mappable/expected_files/models/cat.dart
@@ -11,6 +11,8 @@ class Cat with CatMappable {
   const Cat({
     required this.mewCount,
   });
+
+  /// Number of times the cat meows.
   final int mewCount;
 
   static Cat fromJson(Map<String, dynamic> json) =>
diff --git a/swagger_parser/test/e2e/tests/xof/union_inline_and_refs_any_of_deferred_mappable/expected_files/models/dog.dart b/swagger_parser/test/e2e/tests/xof/union_inline_and_refs_any_of_deferred_mappable/expected_files/models/dog.dart
index e32ae3a4f..5ad5f83e3 100644
--- a/swagger_parser/test/e2e/tests/xof/union_inline_and_refs_any_of_deferred_mappable/expected_files/models/dog.dart
+++ b/swagger_parser/test/e2e/tests/xof/union_inline_and_refs_any_of_deferred_mappable/expected_files/models/dog.dart
@@ -11,6 +11,8 @@ class Dog with DogMappable {
   const Dog({
     required this.barkSound,
   });
+
+  /// The sound of the dog's bark.
   final String barkSound;
 
   static Dog fromJson(Map<String, dynamic> json) =>
diff --git a/swagger_parser/test/e2e/tests/xof/union_inline_and_refs_one_of_deferred_mappable/expected_files/models/cat.dart b/swagger_parser/test/e2e/tests/xof/union_inline_and_refs_one_of_deferred_mappable/expected_files/models/cat.dart
index 7f62a7dd6..b5b93df27 100644
--- a/swagger_parser/test/e2e/tests/xof/union_inline_and_refs_one_of_deferred_mappable/expected_files/models/cat.dart
+++ b/swagger_parser/test/e2e/tests/xof/union_inline_and_refs_one_of_deferred_mappable/expected_files/models/cat.dart
@@ -11,6 +11,8 @@ class Cat with CatMappable {
   const Cat({
     required this.mewCount,
   });
+
+  /// Number of times the cat meows.
   final int mewCount;
 
   static Cat fromJson(Map<String, dynamic> json) =>
diff --git a/swagger_parser/test/e2e/tests/xof/union_inline_and_refs_one_of_deferred_mappable/expected_files/models/dog.dart b/swagger_parser/test/e2e/tests/xof/union_inline_and_refs_one_of_deferred_mappable/expected_files/models/dog.dart
index e32ae3a4f..5ad5f83e3 100644
--- a/swagger_parser/test/e2e/tests/xof/union_inline_and_refs_one_of_deferred_mappable/expected_files/models/dog.dart
+++ b/swagger_parser/test/e2e/tests/xof/union_inline_and_refs_one_of_deferred_mappable/expected_files/models/dog.dart
@@ -11,6 +11,8 @@ class Dog with DogMappable {
   const Dog({
     required this.barkSound,
   });
+
+  /// The sound of the dog's bark.
   final String barkSound;
 
   static Dog fromJson(Map<String, dynamic> json) =>