diff --git a/ndn-all.hpp b/ndn-all.hpp
index 3d531f5..30d97cd 100644
--- a/ndn-all.hpp
+++ b/ndn-all.hpp
@@ -23,6 +23,7 @@
 #include "ns3/ndnSIM/helper/ndn-stack-helper.hpp"
 #include "ns3/ndnSIM/helper/ndn-app-helper.hpp"
 #include "ns3/ndnSIM/helper/ndn-global-routing-helper.hpp"
+#include "ns3/ndnSIM/helper/ndn-network-region-table-helper.hpp"
 // #include "ns3/ndnSIM/helper/ndn-ip-faces-helper.hpp"
 // #include "ns3/ndnSIM/helper/ndn-link-control-helper.hpp"