diff --git a/zh-cn/application-dev/reference/apis/js-apis-system-cipher.md b/zh-cn/application-dev/reference/apis/js-apis-system-cipher.md
index 4c744b59e82b85085d89e5c0f9c48316a6a4b01e..1a4d9387e968ce907f0f87eaa844729ae15bff6d 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-system-cipher.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-system-cipher.md
@@ -165,7 +165,6 @@ export default {
          console.log(`operation complete!`);
         }
      });        
-    });    
   }
 }