diff --git a/internal/util/funcutil/func.go b/internal/util/funcutil/func.go
index a33c6eb3d4..a65d291b05 100644
--- a/internal/util/funcutil/func.go
+++ b/internal/util/funcutil/func.go
@@ -185,6 +185,7 @@ func GetAttrByKeyFromRepeatedKV(key string, kvs []*commonpb.KeyValuePair) (strin
 	return "", errors.New("key " + key + " not found")
 }
 
+// CheckCtxValid check if the context is valid
 func CheckCtxValid(ctx context.Context) bool {
 	return ctx.Err() != context.DeadlineExceeded && ctx.Err() != context.Canceled
 }