diff --git a/vfolders2/vHierarchy/VHierarchyController.cs b/vfolders2/vHierarchy/VHierarchyController.cs
index 0604bfd..d60992e 100644
--- a/vfolders2/vHierarchy/VHierarchyController.cs
+++ b/vfolders2/vHierarchy/VHierarchyController.cs
@@ -416,7 +416,7 @@ namespace VHierarchy
 
         public void SetScrollPos(float targetScrollPos)
         {
-            window.GetMemberValue("m_SceneHierarchy").GetMemberValue<UnityEditor.IMGUI.Controls.TreeViewState>("m_TreeViewState").scrollPos = Vector2.up * targetScrollPos;
+            window.GetMemberValue("m_SceneHierarchy").GetMemberValue<TreeViewState>("m_TreeViewState").scrollPos = Vector2.up * targetScrollPos;
         }
 
 
diff --git a/vfolders2/vHierarchy/VHierarchyGUI.cs b/vfolders2/vHierarchy/VHierarchyGUI.cs
index 76c7114..ad5c817 100644
--- a/vfolders2/vHierarchy/VHierarchyGUI.cs
+++ b/vfolders2/vHierarchy/VHierarchyGUI.cs
@@ -19,7 +19,10 @@ using static VHierarchy.VHierarchy;
 using static VHierarchy.VHierarchyData;
 using static VHierarchy.VHierarchyCache;
 
-
+#if UNITY_6000_2_OR_NEWER
+using TreeViewItem = UnityEditor.IMGUI.Controls.TreeViewItem<int>;
+using TreeViewState = UnityEditor.IMGUI.Controls.TreeViewState<int>;
+#endif
 
 namespace VHierarchy
 {