diff --git a/apps/smartbatt/module.js b/apps/smartbatt/module.js
index 30e84aa49..970fd6ea8 100644
--- a/apps/smartbatt/module.js
+++ b/apps/smartbatt/module.js
@@ -105,7 +105,7 @@
   
   function deleteData(){
     storage.erase(filename);
-  };
+  }
   // Expose public API
   exports.record = recordBattery;
   exports.deleteData = deleteData;