diff --git a/docker/kolab/utils/09-enable-debugging.sh b/docker/kolab/utils/09-enable-debugging.sh
--- a/docker/kolab/utils/09-enable-debugging.sh
+++ b/docker/kolab/utils/09-enable-debugging.sh
@@ -6,3 +6,6 @@
 systemctl restart cyrus-imapd
 
 sed -i -r -e "s/_debug'] = (.*);/_debug'] = true;/g" /etc/roundcubemail/config.inc.php
+
+echo "FLAGS=\"--fork -l debug -d 8\"" > /etc/sysconfig/wallace
+systemctl restart wallace