diff --git a/main.py b/main.py
index a7c0e34..29c0f08 100644
--- a/main.py
+++ b/main.py
@@ -152,7 +152,7 @@ def _restore(e):
             logging.info("Results from Graph:", results)
 
     except Exception as e:
-        logging.error("An error occurred during the Graph operation:", e)
+        logging.error("An error occurred during the Graph operation: %s", e)
         return (
             jsonify(
                 {"error": "An error occurred during the Graph operation: {}".format(e)}