diff --git a/js/piemenus.js b/js/piemenus.js
index 83ab143004..b31762b86e 100644
--- a/js/piemenus.js
+++ b/js/piemenus.js
@@ -3059,7 +3059,8 @@ piemenuModes = function(block, selectedMode) {
     
     // navigate to a specific starting point
     for (modeGroup in MODE_PIE_MENUS) {
-        for (let j = 0; j < MODE_PIE_MENUS[modeGroup].length; j++) {
+        let j;
+        for (j = 0; j < MODE_PIE_MENUS[modeGroup].length; j++) {
             let modename = MODE_PIE_MENUS[modeGroup][j];
             if (modename === selectedMode) {
                 break;