diff --git a/skyscan-c2/c2_pub_sub.py b/skyscan-c2/c2_pub_sub.py
index d424c1f..f02a6bb 100644
--- a/skyscan-c2/c2_pub_sub.py
+++ b/skyscan-c2/c2_pub_sub.py
@@ -547,7 +547,7 @@ def _target_selection_callback(
                     model_version="null",
                     firmware_version="v0.0.0",
                     data_payload_type="Prioritized Object Ledger",
-                    data_payload=json.dumps(object_ledger_df.to_json()),
+                    data_payload=object_ledger_df.to_json(),
                 )
 
                 success = self.publish_to_topic(