diff --git a/.tmux.conf b/.tmux.conf
index 0a31b74..98b0a40 100644
--- a/.tmux.conf
+++ b/.tmux.conf
@@ -122,7 +122,7 @@ bind -t vi-copy H start-of-line
 bind -t vi-copy L end-of-line
 
 # copy to Mac OSX pasteboard
-if 'type -p reattach-to-user-namespace' 'bind y run "tmux save-buffer - | reattach-to-user-namespace pbcopy"'
+if 'command -v reattach-to-user-namespace' 'bind y run "tmux save-buffer - | reattach-to-user-namespace pbcopy"'
 
 
 # -- user defined --------------------------------------------------------------