diff --git a/events.xml b/events.xml
index cffc870..5b6c8d2 100644
--- a/events.xml
+++ b/events.xml
@@ -1,4 +1,6 @@
 <?xml version='1.0'?>
+
+<!DOCTYPE eventdefs SYSTEM "csc.dtd">
 <eventdefs>
 
 <!-- fall 2007 -->