diff --git a/src/Gridler/components/adaptors/GlidlerAPIAdaptorForGoLangv2.tsx b/src/Gridler/components/adaptors/GlidlerAPIAdaptorForGoLangv2.tsx
index 093ef42..7766844 100644
--- a/src/Gridler/components/adaptors/GlidlerAPIAdaptorForGoLangv2.tsx
+++ b/src/Gridler/components/adaptors/GlidlerAPIAdaptorForGoLangv2.tsx
@@ -230,7 +230,7 @@ function _GlidlerAPIAdaptorForGoLangv2<T = unknown>(props: GlidlerAPIAdaptorForG
           ops.push({
             name: 'sql_filter',
             type: 'custom-sql-w',
-            value: props.filter,
+            value: `(${props.filter})`,
           });
         }