user-registration-hook/src/main/webapp/WEB-INF/liferay-hook.xml

<?xml version="1.0"?>
<!DOCTYPE hook PUBLIC "-//Liferay//DTD Hook 6.2.0//EN" "http://www.liferay.com/dtd/liferay-hook_6_2_0.dtd">

<hook>
	<portal-properties>portal.properties</portal-properties>
</hook>