diff --git a/puphpet/files/exec-once/psminstall.sh b/puphpet/files/exec-once/psminstall.sh
index b115800f..055e04d1 100644
--- a/puphpet/files/exec-once/psminstall.sh
+++ b/puphpet/files/exec-once/psminstall.sh
@@ -6,7 +6,7 @@ define('PSM_DB_USER', 'psm'); \
 define('PSM_DB_PASS', 'psm'); \
 define('PSM_DB_NAME', 'psm'); \
 define('PSM_DB_HOST', 'localhost'); \
-define('PSM_DB_PORT', '3306'); \
+define('PSM_DB_PORT', ''); \
 ?>" > /var/www/default/psm/config.php
 
 echo "<?php \