diff --git a/.gitignore b/.gitignore
index de7e9a9d..c1923e65 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@ target/
 /project/project/
 .idea/
 .bsp/
+**/.DS_Store
\ No newline at end of file
diff --git a/models/src/main/thrift/content/v1.thrift b/models/src/main/thrift/content/v1.thrift
index 380d4941..d41a8588 100644
--- a/models/src/main/thrift/content/v1.thrift
+++ b/models/src/main/thrift/content/v1.thrift
@@ -867,6 +867,8 @@ struct ContentAtomElementFields {
 
   4: optional bool isMandatory
 
+  5: optional string caption
+
 }
 
 struct CodeElementFields {