diff --git a/runtime/syntax/help.vim b/runtime/syntax/help.vim
index aa76906..e38c90d 100644
--- a/runtime/syntax/help.vim
+++ b/runtime/syntax/help.vim
@@ -1,7 +1,7 @@
 " Vim syntax file
 " Language:	Vim help file
 " Maintainer:	Bram Moolenaar (Bram@vim.org)
-" Last Change:	2022 May 15
+" Last Change:	2022 Sep 26
 
 " Quit when a (custom) syntax file was already loaded
 if exists("b:current_syntax")
@@ -44,6 +44,7 @@
 syn match helpVim		"VIM REFERENCE.*"
 syn match helpOption		"'[a-z]\{2,\}'"
 syn match helpOption		"'t_..'"
+syn match helpNormal		"'ab'"
 syn match helpCommand		"`[^` \t]\+`"hs=s+1,he=e-1 contains=helpBacktick
 syn match helpCommand		"\(^\|[^a-z"[]\)\zs`[^`]\+`\ze\([^a-z\t."']\|$\)"hs=s+1,he=e-1 contains=helpBacktick
 syn match helpHeader		"\s*\zs.\{-}\ze\s\=\~$" nextgroup=helpIgnore