diff --git a/supertokens_python/framework/flask/flask_middleware.py b/supertokens_python/framework/flask/flask_middleware.py
index 7c7ee6dc..957b47cf 100644
--- a/supertokens_python/framework/flask/flask_middleware.py
+++ b/supertokens_python/framework/flask/flask_middleware.py
@@ -60,7 +60,7 @@ def _():
             if result is not None:
                 if isinstance(result, FlaskResponse):
                     return result.response
-                raise Exception(f"Should never come here, {type(result)=}")
+                raise Exception("Should never come here")
             return None
 
         @app.after_request