diff --git a/apps/powermanager/boot.js b/apps/powermanager/boot.js
index b2327a4d3..18e69e077 100644
--- a/apps/powermanager/boot.js
+++ b/apps/powermanager/boot.js
@@ -77,7 +77,7 @@
       })(Bangle[functionName]);
     }
 
-    let functions = {};
+
     let wrapDeferred = ((o,t) => (a) => {
       if (a == eval || typeof a == "string") {
         return o.apply(this, arguments);