--- a/src/devices/wifi/adhoc-wifi-mac.cc	Wed Dec 10 01:34:04 2008 -0800
+++ b/src/devices/wifi/adhoc-wifi-mac.cc	Wed Dec 10 01:47:59 2008 -0800
@@ -33,6 +33,9 @@
 
 NS_OBJECT_ENSURE_REGISTERED (AdhocWifiMac);
 
+#undef NS_LOG_APPEND_CONTEXT
+#define NS_LOG_APPEND_CONTEXT if (m_low != 0) {std::clog << "[mac=" << m_low->GetAddress () << "] ";}
+
 TypeId 
 AdhocWifiMac::GetTypeId (void)
 {