--- a/src/wifi/model/cara-wifi-manager.cc	Fri Sep 26 12:44:13 2014 -0700
+++ b/src/wifi/model/cara-wifi-manager.cc	Fri Sep 26 15:51:00 2014 -0700
@@ -27,10 +27,9 @@
 
 #define Min(a,b) ((a < b) ? a : b)
 
-NS_LOG_COMPONENT_DEFINE ("Cara");
+namespace ns3 {
 
-
-namespace ns3 {
+NS_LOG_COMPONENT_DEFINE ("Cara");
 
 /**
  * \brief hold per-remote-station state for CARA Wifi manager.