diff --git a/app/api/routes/_blockchain.py b/app/api/routes/_blockchain.py
index 953813e..4d897fc 100644
--- a/app/api/routes/_blockchain.py
+++ b/app/api/routes/_blockchain.py
@@ -122,7 +122,7 @@ async def s_api_v1_blockchain_send_new_content_message(request):
                                         begin_cell()
                                             .store_ref(begin_cell().store_bytes(f"{encrypted_content_cid.serialize_v1()}".encode()).end_cell())
                                             .store_ref(begin_cell().store_bytes(f"{image_content_cid.serialize_v1() if image_content_cid else ''}".encode()).end_cell())
-                                            .store_ref(begin_cell().store_bytes(f"{metadata_content.serialize_v1()}".encode()).end_cell())
+                                            .store_ref(begin_cell().store_bytes(f"{metadata_content.cid.serialize_v1()}".encode()).end_cell())
                                             .end_cell()
                                     )
                                     .end_cell()