diff --git a/UIControl.js b/BottomSpace/UIControl.js
similarity index 98%
rename from UIControl.js
rename to BottomSpace/UIControl.js
index ab8a9de48..515640b31 100644
--- a/UIControl.js
+++ b/BottomSpace/UIControl.js
@@ -37,7 +37,7 @@ function newUIControl () {
   }
 
   function getContainer (point) {
-    var container
+    let container
 
        /* First we check if thisObject point is inside thisObject space. */