diff --git a/model/ccnx-app-face.cc b/model/ccnx-app-face.cc
index e47d35b..f032cd7 100644
--- a/model/ccnx-app-face.cc
+++ b/model/ccnx-app-face.cc
@@ -39,6 +39,8 @@
 namespace ns3 
 {
 
+NS_OBJECT_ENSURE_REGISTERED (CcnxAppFace);
+
 TypeId
 CcnxAppFace::GetTypeId ()
 {