diff --git a/source/guide/custom-filter.md b/source/guide/custom-filter.md
index 1385331662..308928835c 100644
--- a/source/guide/custom-filter.md
+++ b/source/guide/custom-filter.md
@@ -50,7 +50,7 @@ Vue.filter('currencyDisplay', {
       return isNaN(number) ? 0 : number
     }
   }
-}
+})
 ```
 
 Demo: