diff --git a/js/ui/altTab.js b/js/ui/altTab.js
index c734deaca..efbb23827 100644
--- a/js/ui/altTab.js
+++ b/js/ui/altTab.js
@@ -400,9 +400,9 @@ const WindowSwitcherPopup = new Lang.Class({
             this._select(1);
     },
 
-    _keyPressHandler: function(keysym, backwards, action) {
+    _keyPressHandler: function(keysym, action) {
         if (action == Meta.KeyBindingAction.SWITCH_WINDOWS) {
-            this._select(backwards ? this._previous() : this._next());
+            this._select(this._next());
         } else if (action == Meta.KeyBindingAction.SWITCH_WINDOWS_BACKWARD) {
             this._select(this._previous());
         } else {
diff --git a/js/ui/switcherPopup.js b/js/ui/switcherPopup.js
index 2d4ec2ab3..ccb774de3 100644
--- a/js/ui/switcherPopup.js
+++ b/js/ui/switcherPopup.js
@@ -178,7 +178,7 @@ const SwitcherPopup = new Lang.Class({
         return mod(this._selectedIndex - 1, this._items.length);
     },
 
-    _keyPressHandler: function(keysym, backwards, action) {
+    _keyPressHandler: function(keysym, action) {
         throw new Error('Not implemented');
     },