diff --git a/runtime/doc/diff.txt b/runtime/doc/diff.txt
index 637c347..f7661b0 100644
--- a/runtime/doc/diff.txt
+++ b/runtime/doc/diff.txt
@@ -1,4 +1,4 @@
-*diff.txt*      For Vim version 7.4a.  Last change: 2013 Jul 07
+*diff.txt*      For Vim version 7.4b.  Last change: 2013 Jul 07
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar