diff --git a/model/ndn-l3-protocol.hpp b/model/ndn-l3-protocol.hpp
index 5b71e3a..cf3d19a 100644
--- a/model/ndn-l3-protocol.hpp
+++ b/model/ndn-l3-protocol.hpp
@@ -21,6 +21,8 @@
 #ifndef NDN_L3_PROTOCOL_H
 #define NDN_L3_PROTOCOL_H
 
+#include "ns3/ndnSIM/model/ndn-common.hpp"
+
 #include <list>
 #include <vector>