diff --git a/sdx_controller/handlers/connection_handler.py b/sdx_controller/handlers/connection_handler.py
index 2475c88..10fd298 100644
--- a/sdx_controller/handlers/connection_handler.py
+++ b/sdx_controller/handlers/connection_handler.py
@@ -274,7 +274,9 @@ def handle_link_failure(self, te_manager, failed_links):
                     logger.debug(connection)
                     _reason, code = self.place_connection(te_manager, connection)
                     if code // 100 == 2:
-                        self.db_instance.add_key("connections", connection["id"], json.dumps(connection))
+                        self.db_instance.add_key(
+                            "connections", connection["id"], json.dumps(connection)
+                        )
 
     def get_archived_connections(self, service_id: str):
         historical_connections = self.db_instance.read_from_db(