--- a/src/flow-monitor/model/ipv4-flow-probe.h	Wed Jul 06 18:51:12 2011 -0400
+++ b/src/flow-monitor/model/ipv4-flow-probe.h	Thu Jul 07 04:31:52 2011 -0400
@@ -18,8 +18,8 @@
 // Author: Gustavo J. A. M. Carneiro  <gjc@inescporto.pt> <gjcarneiro@gmail.com>
 //
 
-#ifndef __IPV4_FLOW_PROBE_H__
-#define __IPV4_FLOW_PROBE_H__
+#ifndef IPV4_FLOW_PROBE_H
+#define IPV4_FLOW_PROBE_H
 
 #include "ns3/flow-probe.h"
 #include "ns3/ipv4-flow-classifier.h"
@@ -82,5 +82,4 @@
 
 } // namespace ns3
 
-#endif
-
+#endif /* IPV4_FLOW_PROBE_H */