diff --git a/autoload/fzf/vim.vim b/autoload/fzf/vim.vim
index 33189ab..d81f219 100644
--- a/autoload/fzf/vim.vim
+++ b/autoload/fzf/vim.vim
@@ -941,7 +941,7 @@ endfunction
 " Marks
 " ------------------------------------------------------------------
 function! s:format_mark(line)
-  return substitute(a:line, '\S', '\=s:yellow(submatch(0))', '')
+  return substitute(a:line, '\S', '\=s:yellow(submatch(0), "Number")', '')
 endfunction
 
 function! s:mark_sink(lines)