diff --git a/Lib/idlelib/TreeWidget.py b/Lib/idlelib/TreeWidget.py
index 842f788..8e3a69d 100644
--- a/Lib/idlelib/TreeWidget.py
+++ b/Lib/idlelib/TreeWidget.py
@@ -67,6 +67,7 @@ class TreeNode:
         self.children = []
         self.x = self.y = None
         self.iconimages = {} # cache of PhotoImage instances for icons
+        self.text_id = -1
 
     def destroy(self):
         for c in self.children[:]:
@@ -254,11 +255,11 @@ class TreeNode:
             self.label.configure(idleConf.GetHighlight(theme, 'hilite'))
         else:
             self.label.configure(idleConf.GetHighlight(theme, 'normal'))
-        id = self.canvas.create_window(textx, texty,
-                                       anchor="nw", window=self.label)
+        if self.text_id == -1 or not self.canvas.find_withtag(self.text_id):
+            self.text_id = self.canvas.create_window(textx, texty,
+                                                     anchor="nw", window=self.label)
         self.label.bind("<1>", self.select_or_edit)
         self.label.bind("<Double-1>", self.flip)
-        self.text_id = id
 
     def select_or_edit(self, event=None):
         if self.selected and self.item.IsEditable():