diff --git a/interceptors/protovalidate/protovalidate.go b/interceptors/protovalidate/protovalidate.go
index 40d71739..5ebfc3e5 100644
--- a/interceptors/protovalidate/protovalidate.go
+++ b/interceptors/protovalidate/protovalidate.go
@@ -93,5 +93,5 @@ func validateMsg(m interface{}, validator Validator, opts *options) error {
 		return ds.Err()
 	}
 	// CEL expression doesn't compile or type-check.
-	return status.Error(codes.Unknown, err.Error())
+	return status.Error(codes.Internal, err.Error())
 }