diff --git a/apps/boxclk/app.js b/apps/boxclk/app.js
index faaf4b7d2..ce54da25d 100644
--- a/apps/boxclk/app.js
+++ b/apps/boxclk/app.js
@@ -139,8 +139,6 @@
     }
   }
 
-  let boxKeys = Object.keys(boxes);
-
   // 6. Text and drawing functions
 
   /*