diff --git a/NEG/UI/UnityUi/Window/MonoWindow.cs b/NEG/UI/UnityUi/Window/MonoWindow.cs
index f37bc89..147239a 100644
--- a/NEG/UI/UnityUi/Window/MonoWindow.cs
+++ b/NEG/UI/UnityUi/Window/MonoWindow.cs
@@ -6,6 +6,7 @@ using NEG.UI.WindowSlot;
 using System;
 using System.Collections.Generic;
 using UnityEngine;
+using UnityEngine.EventSystems;
 
 namespace NEG.UI.UnityUi.Window
 {
@@ -27,6 +28,7 @@ namespace NEG.UI.UnityUi.Window
         {
             gameObject.SetActive(true);
             Parent = parentSlot;
+            EventSystem.current.SetSelectedGameObject(defaultSelectedItem);
             if (controller != null) 
                 controller.OnOpened();
         }