diff --git a/.vimrc b/.vimrc
--- a/.vimrc
+++ b/.vimrc
@@ -409,10 +409,6 @@ endtry
 let g:unite_source_session_enable_auto_save = 1
 
 if executable('ag')
-  let g:unite_source_grep_command = 'ag'
-  let g:unite_source_grep_default_opts = '--nogroup --nocolor --column'
-  let g:unite_source_grep_recursive_opt = ''
-
   let g:unite_source_rec_async_command = ['ag', '-f', '--nocolor', '--nogroup', '-g', '']
 endif