diff --git a/runtime/doc/diff.txt b/runtime/doc/diff.txt
index ed059c9..573cd5f 100644
--- a/runtime/doc/diff.txt
+++ b/runtime/doc/diff.txt
@@ -1,4 +1,4 @@
-*diff.txt*      For Vim version 7.1a.  Last change: 2006 Oct 02
+*diff.txt*      For Vim version 7.1b.  Last change: 2006 Oct 02
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar