diff --git a/llama_stack/apis/scoring_functions/scoring_functions.py b/llama_stack/apis/scoring_functions/scoring_functions.py
index 243dc37e9..1c868436d 100644
--- a/llama_stack/apis/scoring_functions/scoring_functions.py
+++ b/llama_stack/apis/scoring_functions/scoring_functions.py
@@ -248,7 +248,8 @@ class ScoringFunctions(Protocol):
 
     @webmethod(route="/scoring-functions/{scoring_fn_id:path}", method="GET")
     async def get_scoring_function(
-        self, scoring_fn_id: str, /
+        self,
+        scoring_fn_id: str,
     ) -> Optional[ScoringFn]: ...
 
     @webmethod(route="/scoring-functions", method="POST")