diff --git a/runtime/doc/diff.txt b/runtime/doc/diff.txt
index 1b7a1be..8d4cb03 100644
--- a/runtime/doc/diff.txt
+++ b/runtime/doc/diff.txt
@@ -1,4 +1,4 @@
-*diff.txt*      For Vim version 7.3a.  Last change: 2009 Sep 15
+*diff.txt*      For Vim version 7.3b.  Last change: 2009 Sep 15
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar