--- a/src/tools/model/event-garbage-collector.h	Wed May 18 20:01:44 2011 -0400
+++ b/src/tools/model/event-garbage-collector.h	Wed May 18 17:24:04 2011 -0700
@@ -27,6 +27,8 @@
 namespace ns3 {
 
 /**
+ * \ingroup tools
+ *
  * \brief An object that tracks scheduled events and automatically
  * cancels them when it is destroyed.  It is useful in situations
  * where multiple instances of the same type of event can