--- a/src/network/utils/mac48-address.cc	Fri Nov 15 21:30:47 2013 +0100
+++ b/src/network/utils/mac48-address.cc	Fri Nov 15 16:20:58 2013 -0500
@@ -29,7 +29,7 @@
 
 namespace ns3 {
 
-ATTRIBUTE_HELPER_CPP (Mac48Address);
+ATTRIBUTE_HELPER_CPP (Mac48Address);  /// Macro to make help make class an ns-3 attribute
 
 #define ASCII_a (0x41)
 #define ASCII_z (0x5a)