diff --git a/extensions/auto-move-windows/prefs.js b/extensions/auto-move-windows/prefs.js
index d995ed77..7e68a764 100644
--- a/extensions/auto-move-windows/prefs.js
+++ b/extensions/auto-move-windows/prefs.js
@@ -157,7 +157,7 @@ const Widget = GObject.registerClass({
     }
 
     _deleteSelected() {
-        let [any, model, iter] = this._treeView.get_selection().get_selected();
+        let [any, model_, iter] = this._treeView.get_selection().get_selected();
 
         if (any) {
             let appInfo = this._store.get_value(iter, Columns.APPINFO);
@@ -174,7 +174,7 @@ const Widget = GObject.registerClass({
         if (isNaN(index) || index < 0)
             index = 1;
         let path = Gtk.TreePath.new_from_string(pathString);
-        let [model, iter] = this._store.get_iter(path);
+        let [model_, iter] = this._store.get_iter(path);
         let appInfo = this._store.get_value(iter, Columns.APPINFO);
 
         this._changedPermitted = false;
diff --git a/extensions/windowsNavigator/extension.js b/extensions/windowsNavigator/extension.js
index bc46db65..805b0b48 100644
--- a/extensions/windowsNavigator/extension.js
+++ b/extensions/windowsNavigator/extension.js
@@ -219,7 +219,7 @@ function enable() {
     });
 
     winInjections['relayout'] = injectToFunction(Workspace.WindowOverlay.prototype, 'relayout', function(_animate) {
-        let [cloneX, cloneY, cloneWidth, cloneHeight] = this._windowClone.slot;
+        let [cloneX, cloneY, cloneWidth_, cloneHeight_] = this._windowClone.slot;
 
         let textX = cloneX - 2;
         let textY = cloneY - 2;