diff --git a/runtime/doc/os_win32.txt b/runtime/doc/os_win32.txt
index bf66f9d..5701860 100644
--- a/runtime/doc/os_win32.txt
+++ b/runtime/doc/os_win32.txt
@@ -1,4 +1,4 @@
-*os_win32.txt*  For Vim version 7.1a.  Last change: 2007 Apr 22
+*os_win32.txt*  For Vim version 7.1b.  Last change: 2007 Apr 22
 
 
 		  VIM REFERENCE MANUAL    by George Reilly