diff --git a/start_site.sh b/start_site.sh
index a9f5605..dc597e9 100644
--- a/start_site.sh
+++ b/start_site.sh
@@ -6,4 +6,4 @@ daemon_args=""
 if [[ "$2" != "-ND" ]]; then
 	daemon_args="-D"
 fi
-bundle exec unicorn_rails -c config/unicorn.rb -E $rails_env $daemon_args $3 "$4"
\ No newline at end of file
+bundle exec unicorn_rails -c config/unicorn.rb -E $rails_env $daemon_args $3  $(if [ ! -z $4 ]; then echo '"'$4'"'; fi)
\ No newline at end of file