diff --git a/Lib/UserList.py b/Lib/UserList.py
index 1d5065fa245..93e4a7e2114 100644
--- a/Lib/UserList.py
+++ b/Lib/UserList.py
@@ -49,3 +49,4 @@ def count(self, item): return self.data.count(item)
 	def index(self, item): return self.data.index(item)
 	def reverse(self): self.data.reverse()
 	def sort(self, *args): apply(self.data.sort, args)
+	def extend(self, list): self.data.extend(list)