diff --git a/runtime/doc/builtin.txt b/runtime/doc/builtin.txt
index 8f79d20..94fcdf7 100644
--- a/runtime/doc/builtin.txt
+++ b/runtime/doc/builtin.txt
@@ -1,4 +1,4 @@
-*builtin.txt*	For Vim version 9.1.  Last change: 2023 Dec 24
+*builtin.txt*	For Vim version 9.1.  Last change: 2024 Jan 04
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -3570,6 +3570,7 @@
 		help		help subjects
 		highlight	highlight groups
 		history		|:history| suboptions
+		keymap		keyboard mappings
 		locale		locale names (as output of locale -a)
 		mapclear	buffer argument
 		mapping		mapping name