Index: lams_learning/web/WEB-INF/tiles-defs.xml
===================================================================
diff -u -rda9d623352f3964daa5fe12f81a683b9377d286a -rdbad8619d09c6a235f29d963d58b4c2310f82013
--- lams_learning/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision da9d623352f3964daa5fe12f81a683b9377d286a)
+++ lams_learning/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision dbad8619d09c6a235f29d963d58b4c2310f82013)
@@ -1,5 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
+<!DOCTYPE tiles-definitions PUBLIC
+        "-//Apache Software Foundation//DTD Tiles Configuration 1.3//EN"
+        "http://struts.apache.org/dtds/tiles-config_1_4.dtd">
+
 <!--
 Copyright (C) 2005 LAMS Foundation (http://lamsfoundation.org)
 License Information: http://lamsfoundation.org/licensing/lams/2.0/