src: One more set of renaming: ndn-content-object.h|cc is renamed to ndn-data.h|cc
diff --git a/utils/tracers/ndn-l3-tracer.cc b/utils/tracers/ndn-l3-tracer.cc
index bd45113..47e67a4 100644
--- a/utils/tracers/ndn-l3-tracer.cc
+++ b/utils/tracers/ndn-l3-tracer.cc
@@ -30,7 +30,7 @@
 
 #include "ns3/ndn-face.h"
 #include "ns3/ndn-interest.h"
-#include "ns3/ndn-content-object.h"
+#include "ns3/ndn-data.h"
 #include "ns3/ndn-pit-entry.h"
 
 using namespace std;