diff --git a/plugins/heroku/_heroku b/plugins/heroku/_heroku
index bb2f7403..fd72e530 100644
--- a/plugins/heroku/_heroku
+++ b/plugins/heroku/_heroku
@@ -143,5 +143,6 @@ _arguments \
   $_command_args \
   '(--app)--app[the app name]' \
   '(--remote)--remote[the remote name]' \
+  '(--help)--help[help about the current command]' \
   &&  return 0