diff --git a/flytekit/clis/flyte_cli/main.py b/flytekit/clis/flyte_cli/main.py
index 5686854fad..438e91141f 100644
--- a/flytekit/clis/flyte_cli/main.py
+++ b/flytekit/clis/flyte_cli/main.py
@@ -624,7 +624,7 @@ def _flyte_cli(ctx, host, config, project, domain, name, cacert, insecure):
     Command line tool for interacting with all entities on the Flyte Platform.
     """
     if cacert and insecure:
-        raise _user_exceptions.FlyteValidationException(f"Should not pass both certificate and insecure options!")
+        raise _user_exceptions.FlyteValidationException("Should not pass both certificate and insecure options!")
 
 
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