diff --git a/runtime/doc/builtin.txt b/runtime/doc/builtin.txt
index cf48b4d..a6b8e31 100644
--- a/runtime/doc/builtin.txt
+++ b/runtime/doc/builtin.txt
@@ -1,4 +1,4 @@
-*builtin.txt*	For Vim version 8.2.  Last change: 2021 Dec 27
+*builtin.txt*	For Vim version 8.2.  Last change: 2021 Dec 28
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar