--- a/src/tools/model/delay-jitter-estimation.h	Wed May 18 20:01:44 2011 -0400
+++ b/src/tools/model/delay-jitter-estimation.h	Wed May 18 17:24:04 2011 -0700
@@ -7,6 +7,8 @@
 namespace ns3 {
 
 /**
+ * \ingroup tools
+ *
  * \brief quick and dirty delay and jitter estimation
  *
  */