diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index a31d041..e2ce176 100644
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -1,4 +1,4 @@
-*options.txt*	For Vim version 9.1.  Last change: 2024 Dec 06
+*options.txt*	For Vim version 9.1.  Last change: 2024 Dec 07
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -5649,6 +5649,7 @@
 			milliseconds so the user has a chance to read the
 			message, use 0 to disable sleep (but then the user may
 			miss an important message).
+			The maximum value is 10000.
 
 	history:{n}	Determines how many entries are remembered in the
 			|:messages| history.  The maximum value is 10000.