--- a/src/core/global-value.h	Thu May 29 19:09:56 2008 -0700
+++ b/src/core/global-value.h	Thu May 29 23:24:10 2008 -0700
@@ -29,6 +29,8 @@
 namespace ns3 {
 
 /**
+ * \ingroup Core
+ *
  * \brief hold a so-called 'global value'.
  *
  * Instances of this class are expected to be allocated as static