diff --git a/contentctl/objects/data_source.py b/contentctl/objects/data_source.py
index 715d6fdf..e606a9f2 100644
--- a/contentctl/objects/data_source.py
+++ b/contentctl/objects/data_source.py
@@ -55,6 +55,7 @@ def serialize_model(self):
             "field_mappings": self.field_mappings,
             "convert_to_log_source": self.convert_to_log_source,
             "example_log": self.example_log,
+            "output_fields": self.output_fields,
         }
 
         # Combine fields from this model with fields from parent