diff --git a/start.sh b/start.sh
index b79bb9a..8d08396 100644
--- a/start.sh
+++ b/start.sh
@@ -2,7 +2,7 @@
 service apache2 start &
 while true
 do
-    su - www-data php -f /var/www/nextcloud/cron.php
+    su -s /bin/bash www-data -c "php -f /var/www/nextcloud/cron.php"
     sleep 300;
 done
 /bin/sh