diff --git a/vimrc b/vimrc
index 20848cc..e38958c 100644
--- a/vimrc
+++ b/vimrc
@@ -389,7 +389,7 @@ function! s:Get_env() abort
     endif
 endfunction
 " What command to use on what system
-let s:cmds = {"DARWIN": "open", "LINUX": "qutebrowser", "WINDOWS": "start"}
+let s:cmds = {'DARWIN': 'open', 'LINUX': 'qutebrowser', 'WINDOWS': 'start'}
 
 " Build the URL stub
 let s:stub = s:cmds[<SID>Get_env()] . " 'http://devdocs.io/?q="