diff --git a/models/src/main/thrift/content/v1.thrift b/models/src/main/thrift/content/v1.thrift
index 9057a0e..a2dea63 100644
--- a/models/src/main/thrift/content/v1.thrift
+++ b/models/src/main/thrift/content/v1.thrift
@@ -881,6 +881,8 @@ struct ContentAtomElementFields {
 
   5: optional string caption
 
+  6: optional string jsonData
+
 }
 
 struct CodeElementFields {