diff --git a/model/ndn-global-router.h b/model/ndn-global-router.h
index 1ef6329..dad2180 100644
--- a/model/ndn-global-router.h
+++ b/model/ndn-global-router.h
@@ -40,6 +40,7 @@
 typedef Name NameComponents;
 
 /**
+ * @ingroup ndn
  * @brief Class representing global router interface for ndnSIM
  */
 class GlobalRouter : public Object