diff --git a/fish/config/config.fish b/fish/config/config.fish
index 5412781..7162021 100644
--- a/fish/config/config.fish
+++ b/fish/config/config.fish
@@ -77,7 +77,7 @@ if status is-interactive
         end
     end
 
-    function ranger
+    function r --description='sync ranger pwd to shell when exit'
         set tempfile (mktemp -t tmp.XXXXXX)
         command ranger --choosedir=$tempfile $argv
         if test -s $tempfile