--- a/src/core/integer.h	Thu May 29 19:09:56 2008 -0700
+++ b/src/core/integer.h	Thu May 29 23:24:10 2008 -0700
@@ -27,6 +27,7 @@
 namespace ns3 {
 
 /**
+ * \ingroup attribute
  * \class ns3::IntegerValue
  * \brief Hold a signed integer type
  *