Normalizing namespace usage (ndnSIM namespace is now always under ns3)
diff --git a/utils/load-stats-face.h b/utils/load-stats-face.h
index a930181..b8202f9 100644
--- a/utils/load-stats-face.h
+++ b/utils/load-stats-face.h
@@ -23,6 +23,8 @@
 
 #include "load-stats.h"
 
+namespace ns3
+{
 namespace ndnSIM
 {
 
@@ -130,6 +132,7 @@
 std::ostream &
 operator << (std::ostream &os, const LoadStatsFace &stats);
 
-}
+} // ndnSIM
+} // ns3
 
 #endif // LOAD_STATS_FACE_H