--- a/src/point-to-point-layout/model/point-to-point-star.h	Wed May 18 20:01:44 2011 -0400
+++ b/src/point-to-point-layout/model/point-to-point-star.h	Wed May 18 17:24:04 2011 -0700
@@ -29,6 +29,13 @@
 namespace ns3 {
 
 /**
+ * \defgroup pointtopointlayout Point-to-Point Layout Helpers
+ *
+ */
+
+/**
+ * \ingroup pointtopointlayout
+ *
  * \brief A helper to make it easier to create a star topology
  * with PointToPoint links
  */