--- a/src/internet/model/arp-l3-protocol.cc	Fri Sep 26 12:44:13 2014 -0700
+++ b/src/internet/model/arp-l3-protocol.cc	Fri Sep 26 15:51:00 2014 -0700
@@ -32,9 +32,9 @@
 #include "arp-cache.h"
 #include "ipv4-interface.h"
 
-NS_LOG_COMPONENT_DEFINE ("ArpL3Protocol");
+namespace ns3 {
 
-namespace ns3 {
+NS_LOG_COMPONENT_DEFINE ("ArpL3Protocol");
 
 const uint16_t ArpL3Protocol::PROT_NUMBER = 0x0806;