diff --git a/distillery/utils/set_trusted_host.sh b/distillery/utils/set_trusted_host.sh
index bd8d1f0..2c28a7f 100755
--- a/distillery/utils/set_trusted_host.sh
+++ b/distillery/utils/set_trusted_host.sh
@@ -3,7 +3,8 @@
 # This utility script can be used to configure the trusted host settings inside of settings.php. 
 # It doesn't take care of corner cases and should only be used when needed. 
 
-INSTANCE_DOMAIN="${VIRTUAL_HOST}"
+INSTANCE_DOMAIN="$(hostname -f)"
+INSTANCE_DOMAIN="${INSTANCE_DOMAIN%.wisski}"
 chmod u+w web/sites/default/settings.php
 echo "" >> web/sites/default/settings.php
 echo "\$settings['trusted_host_patterns'] = ['${INSTANCE_DOMAIN//\./\\\.}'];" >> web/sites/default/settings.php