diff --git a/keymaster.js b/keymaster.js
index 95ba980..e085758 100644
--- a/keymaster.js
+++ b/keymaster.js
@@ -187,7 +187,7 @@
       if (!_handlers[key]) {
         return;
       }
-      for (i in _handlers[key]) {
+      for (i = 0; i < _handlers[key].length; i++) {
         obj = _handlers[key][i];
         // only clear handlers if correct scope and mods match
         if (obj.scope === scope && compareArray(obj.mods, mods)) {