--- a/src/point-to-point-layout/model/point-to-point-grid.h	Wed May 18 20:01:44 2011 -0400
+++ b/src/point-to-point-layout/model/point-to-point-grid.h	Wed May 18 17:24:04 2011 -0700
@@ -30,6 +30,8 @@
 namespace ns3 {
 
 /**
+ * \ingroup pointtopointlayout
+ *
  * \brief A helper to make it easier to create a grid topology
  * with p2p links
  */