diff --git a/test/content-object-test.cc b/test/content-object-test.cc
index eff1304..cbb5811 100644
--- a/test/content-object-test.cc
+++ b/test/content-object-test.cc
@@ -23,6 +23,7 @@
 #include "ns3/ccnx-interest-header.h"
 #include "ns3/uinteger.h"
 #include "ns3/random-variable.h"
+#include "ns3/packet.h"
 #include <limits> 
 #include "ns3/ccnx-header-helper.h"
 #include "ns3/header.h"