diff --git a/software/silverstripe/instance.cfg b/software/silverstripe/instance.cfg
index fa0ebbb9efa5918e973fade5f3bd1d321b4d6de6..13e07c597bf6a6630282cdf056c7b3fa65669909 100644
--- a/software/silverstripe/instance.cfg
+++ b/software/silverstripe/instance.cfg
@@ -14,3 +14,7 @@ mysql_binary = ${mariadb:location}/bin/mysql
 mysql_install_binary = ${mariadb:location}/bin/mysql_install_db
 mysql_upgrade_binary = ${mariadb:location}/bin/mysql_upgrade
 mysqld_binary = ${mariadb:location}/libexec/mysqld
+delete = install.php
+table_name = Member
+constraint = `ID`>0
+