diff --git a/runtime/doc/os_mac.txt b/runtime/doc/os_mac.txt
index 06593b1..f11ab5a 100644
--- a/runtime/doc/os_mac.txt
+++ b/runtime/doc/os_mac.txt
@@ -1,4 +1,4 @@
-*os_mac.txt*    For Vim version 7.3a.  Last change: 2006 Apr 30
+*os_mac.txt*    For Vim version 7.3b.  Last change: 2006 Apr 30
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar et al.