diff --git a/runtime/syntax/vim.vim b/runtime/syntax/vim.vim
index ae7983f..b6ac6b5 100644
--- a/runtime/syntax/vim.vim
+++ b/runtime/syntax/vim.vim
@@ -1,8 +1,8 @@
 " Vim syntax file
 " Language:	Vim 8.0 script
 " Maintainer:	Charles E. Campbell <NdrOchipS@PcampbellAfamily.Mbiz>
-" Last Change:	Sep 26, 2018
-" Version:	8.0-20
+" Last Change:	Mar 08, 2019
+" Version:	8.0-21
 " URL:	http://www.drchip.org/astronaut/vim/index.html#SYNTAX_VIM
 " Automatically generated keyword lists: {{{1
 
@@ -217,7 +217,7 @@
 " =========
 syn cluster	vimOperGroup	contains=vimEnvvar,vimFunc,vimFuncVar,vimOper,vimOperParen,vimNumber,vimString,vimRegister,vimContinue
 syn match	vimOper	"\%#=1\(==\|!=\|>=\|<=\|=\~\|!\~\|>\|<\|=\)[?#]\{0,2}"	skipwhite nextgroup=vimString,vimSpecFile
-syn match	vimOper	"\(\<is\>\|\<isnot\>\)[?#]\{0,2}"		skipwhite nextgroup=vimString,vimSpecFile
+syn match	vimOper	"\(\<is\|\<isnot\)[?#]\{0,2}\>"		skipwhite nextgroup=vimString,vimSpecFile
 syn match	vimOper	"||\|&&\|[-+.]"			skipwhite nextgroup=vimString,vimSpecFile
 syn region	vimOperParen 	matchgroup=vimParenSep	start="(" end=")" contains=@vimOperGroup
 syn region	vimOperParen	matchgroup=vimSep		start="{" end="}" contains=@vimOperGroup nextgroup=vimVar,vimFuncVar