diff --git a/taskbar.js b/taskbar.js
index 05c71b0..0f86e73 100644
--- a/taskbar.js
+++ b/taskbar.js
@@ -1331,6 +1331,7 @@ export const TaskbarItemContainer = GObject.registerClass({
 
     _init() {
         super._init()
+        this.x_expand = this.y_expand = false
     }
 
     vfunc_allocate(box) {