diff -r 227bbce969df Lib/tkinter/tix.py
--- a/Lib/tkinter/tix.py	Sun Mar 23 12:53:48 2014 +0000
+++ b/Lib/tkinter/tix.py	Fri Oct 23 00:01:42 2015 +0100
@@ -922,8 +922,8 @@
     def header_cget(self,  col, opt):
         return self.tk.call(self._w, 'header', 'cget', col, opt)
 
-    def header_exists(self,  col):
-        return self.tk.call(self._w, 'header', 'exists', col)
+    def header_exist(self,  col):
+        return self.tk.call(self._w, 'header', 'exist', col)
 
     def header_delete(self, col):
         self.tk.call(self._w, 'header', 'delete', col)