diff --git a/nvim/ack.vimrc b/nvim/ack.vimrc
index a28de02..4b3ebc3 100644
--- a/nvim/ack.vimrc
+++ b/nvim/ack.vimrc
@@ -5,7 +5,7 @@ if executable('rg')
   noremap <Leader><Tab> :Ack <C-r><C-w><CR>
 
   " Use rg over grep
-  set grepprg='rg --color never'
+  set grepprg=rg\ --color\ never
 
   " Use rg in CtrlP for listing files. Lightning fast and respects .gitignore
   let g:ctrlp_user_command = 'rg --files %s'