diff --git a/runtime/doc/undo.txt b/runtime/doc/undo.txt
index 413143a..f996d0b 100644
--- a/runtime/doc/undo.txt
+++ b/runtime/doc/undo.txt
@@ -1,4 +1,4 @@
-*undo.txt*      For Vim version 7.1b.  Last change: 2006 Apr 30
+*undo.txt*      For Vim version 7.1.  Last change: 2006 Apr 30
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar