diff --git a/tests/detect_aws_credentials_test.py b/tests/detect_aws_credentials_test.py
index ce6c7be..61026b4 100644
--- a/tests/detect_aws_credentials_test.py
+++ b/tests/detect_aws_credentials_test.py
@@ -212,7 +212,7 @@ def test_non_existent_json_credentials_with_allow_flag(
     mock_secrets_file.return_value = set()
     ret = main((
         get_resource_path('aws_config_without_secrets.ini'),
-        '--json-credentials-file=credentailsfilethatdoesntexist',
+        '--json-credentials-dir=credentailsfilethatdoesntexist',
         '--allow-missing-credentials',
     ))
     assert ret == 0