diff --git a/categories/editor/tree_editor.py b/categories/editor/tree_editor.py
index ca3d047..1943ac6 100644
--- a/categories/editor/tree_editor.py
+++ b/categories/editor/tree_editor.py
@@ -136,11 +136,18 @@ class TreeEditor(admin.ModelAdmin):
                 pass
 
         try:
-            cl = TreeChangeList(request, self.model, list_display, 
-                self.list_display_links, self.list_filter, self.date_hierarchy, 
-                self.search_fields, self.list_select_related, 
-                self.list_per_page, self.list_max_show_all, 
-                self.list_editable, self)
+            if django.VERSION[1] < 4:
+                params = (request, self.model, list_display, 
+                    self.list_display_links, self.list_filter, self.date_hierarchy, 
+                    self.search_fields, self.list_select_related, 
+                    self.list_per_page,self.list_editable, self)
+            else:
+                params = (request, self.model, list_display, 
+                    self.list_display_links, self.list_filter, self.date_hierarchy, 
+                    self.search_fields, self.list_select_related, 
+                    self.list_per_page, self.list_max_show_all, 
+                    self.list_editable, self)
+            cl = TreeChangeList(*params)
         except IncorrectLookupParameters:
             # Wacky lookup parameters were given, so redirect to the main
             # changelist page, without parameters, and pass an 'invalid=1'