diff --git a/runtime/optwin.vim b/runtime/optwin.vim
index 9b59211..2bcea9d 100644
--- a/runtime/optwin.vim
+++ b/runtime/optwin.vim
@@ -1,7 +1,7 @@
 " These commands create the option window.
 "
 " Maintainer:	The Vim Project <https://github.com/vim/vim>
-" Last Change:	2025 Mar 27
+" Last Change:	2025 Mar 28
 " Former Maintainer:	Bram Moolenaar <Bram@vim.org>
 
 " If there already is an option window, jump to that one.
@@ -863,7 +863,7 @@
   call <SID>OptionG("ph", &ph)
   call <SID>AddOption("pumwidth", gettext("minimum width of the popup menu"))
   call <SID>OptionG("pw", &pw)
-  call <SID>AddOption("pumaxmwidth", gettext("maximum width of the popup menu"))
+  call <SID>AddOption("pummaxwidth", gettext("maximum width of the popup menu"))
   call <SID>OptionG("pmw", &pmw)
   call <SID>AddOption("completefunc", gettext("user defined function for Insert mode completion"))
   call append("$", "\t" .. s:local_to_buffer)