diff --git a/lib/src/models/interactive_message/ds_interactive_message.model.dart b/lib/src/models/interactive_message/ds_interactive_message.model.dart
index 9f479395..e7bdbf34 100644
--- a/lib/src/models/interactive_message/ds_interactive_message.model.dart
+++ b/lib/src/models/interactive_message/ds_interactive_message.model.dart
@@ -31,6 +31,7 @@ class DSInteractiveMessage {
             : null;
 
   Map<String, dynamic> toJson() => {
+        'header': header?.toJson(),
         'body': body?.toJson(),
         'action': action?.toJson(),
         'footer': footer?.toJson(),