diff --git a/llama_stack/apis/scoring_functions/scoring_functions.py b/llama_stack/apis/scoring_functions/scoring_functions.py
index 1afe03277..d6ee4f975 100644
--- a/llama_stack/apis/scoring_functions/scoring_functions.py
+++ b/llama_stack/apis/scoring_functions/scoring_functions.py
@@ -239,7 +239,7 @@ class ScoringFnTypeInfo(BaseModel):
     type: ScoringFunctionType
     description: str
     supported_purposes: List[DatasetPurpose] = Field(
-        description="The purposes that this scoring function can be used for",
+        description="The supported purposes (supported dataset schema) that this scoring function can be used for. E.g. eval/question-answer",
         default_factory=list,
     )