diff --git a/AssetStudio/AssetStudioForm.cs b/AssetStudio/AssetStudioForm.cs
index 0e226cf..0fbb688 100644
--- a/AssetStudio/AssetStudioForm.cs
+++ b/AssetStudio/AssetStudioForm.cs
@@ -1819,6 +1819,8 @@ namespace AssetStudio
 
             moduleLoaded = false;
             LoadedModuleDic.Clear();
+            treeNodeCollection.Clear();
+            treeNodeDictionary.Clear();
         }
 
         private void assetListView_MouseClick(object sender, MouseEventArgs e)