diff --git a/autoload/tablemode/table.vim b/autoload/tablemode/table.vim
index d93fdbc..82344b1 100644
--- a/autoload/tablemode/table.vim
+++ b/autoload/tablemode/table.vim
@@ -78,7 +78,7 @@ endfunction
 function! tablemode#table#GetCommentStart() "{{{2
   let cstring = &commentstring
   if tablemode#utils#strlen(cstring) > 0
-    return substitute(split(cstring, '%s')[0], '.', '\\\0', 'g')
+    return substitute(split(cstring, '%s')[0], '[^()]', '\\\0', 'g')
   else
     return ''
   endif
@@ -98,7 +98,7 @@ function! tablemode#table#GetCommentEnd() "{{{2
   if tablemode#utils#strlen(cstring) > 0
     let cst = split(cstring, '%s')
     if len(cst) == 2
-      return substitute(cst[1], '.', '\\\0', 'g')
+      return substitute(cst[1], '[^()]', '\\\0', 'g')
     else
       return ''
     endif