diff --git a/syntax/markdown.vim b/syntax/markdown.vim
index 76c077c..3024f2f 100644
--- a/syntax/markdown.vim
+++ b/syntax/markdown.vim
@@ -86,7 +86,7 @@ syn region markdownCode matchgroup=markdownCodeDelimiter start="^\s*```.*$" end=
 
 if main_syntax ==# 'markdown'
   for s:type in g:markdown_fenced_languages
-    exe 'syn region markdownHighlight'.substitute(matchstr(s:type,'[^=]*$'),'\..*','','').' matchgroup=markdownCodeDelimiter start="^\s*```'.matchstr(s:type,'[^=]*').'\>.*$" end="^\s*```\ze\s*$" keepend contains=@markdownHighlight'.substitute(matchstr(s:type,'[^=]*$'),'\.','','g')
+    exe 'syn region markdownHighlight'.substitute(matchstr(s:type,'[^=]*$'),'\..*','','').' matchgroup=markdownCodeDelimiter start="^\s*```\s*'.matchstr(s:type,'[^=]*').'\>.*$" end="^\s*```\ze\s*$" keepend contains=@markdownHighlight'.substitute(matchstr(s:type,'[^=]*$'),'\.','','g')
   endfor
   unlet! s:type
 endif