diff --git a/.tmux.conf b/.tmux.conf
--- a/.tmux.conf
+++ b/.tmux.conf
@@ -34,5 +34,5 @@ set -g set-titles-string "#h(#S)"
 source-file ~/.tmux/screen-keys.conf
 source-file ~/.tmux/vim-keys.conf
 
-if-shell '[-e ~/.tmux.conf.local]' "source ~/.tmux.conf.local"
+if-shell 'test -e ~/.tmux.conf.local' "source ~/.tmux.conf.local"