diff --git a/autoload/fzf/vim.vim b/autoload/fzf/vim.vim
index 0c259c3..13282b5 100644
--- a/autoload/fzf/vim.vim
+++ b/autoload/fzf/vim.vim
@@ -766,7 +766,7 @@ function! fzf#vim#tags(query, ...)
   " We don't want to apply --ansi option when tags file is large as it makes
   " processing much slower.
   if getfsize(tagfile) > 1024 * 1024 * 20
-    let proc = 'grep -v ''^\!'' '
+    let proc = 'grep -av ''^\!'' '
     let copt = ''
   else
     let proc = 'perl -ne ''unless (/^\!/) { s/^(.*?)\t(.*?)\t/'.s:yellow('\1', 'Function').'\t'.s:blue('\2', 'String').'\t/; print }'' '