diff --git a/src/node/ipv4-routing-protocol.h b/src/node/ipv4-routing-protocol.h
index 23ec9ca30..dd791dae6 100644
--- a/src/node/ipv4-routing-protocol.h
+++ b/src/node/ipv4-routing-protocol.h
@@ -36,7 +36,7 @@ class NetDevice;
  * \ingroup node 
  * \defgroup ipv4Routing Ipv4RoutingProtocol 
  */
-/*
+/**
  * \ingroup ipv4Routing
  * \brief Abstract base class for IPv4 routing protocols. 
  * 
diff --git a/src/routing/list-routing/ipv4-list-routing.h b/src/routing/list-routing/ipv4-list-routing.h
index 541411a1e..42581ab53 100644
--- a/src/routing/list-routing/ipv4-list-routing.h
+++ b/src/routing/list-routing/ipv4-list-routing.h
@@ -26,6 +26,10 @@ namespace ns3 {
 
 /**
  * \ingroup routing 
+ * \defgroup ipv4ListRouting Ipv4 List Routing
+ */
+/**
+ * \ingroup ipv4ListRouting
  *
  * This class is a specialization of Ipv4RoutingProtocol that allows 
  * other instances of Ipv4RoutingProtocol to be inserted in a 
diff --git a/src/routing/static-routing/ipv4-static-routing.h b/src/routing/static-routing/ipv4-static-routing.h
index 3564602aa..68f942b48 100644
--- a/src/routing/static-routing/ipv4-static-routing.h
+++ b/src/routing/static-routing/ipv4-static-routing.h
@@ -44,6 +44,10 @@ class Node;
 
 /**
  * \ingroup routing
+ * \defgroup ipv4StaticRouting Ipv4StaticRouting
+ */
+/**
+ * \ingroup ipv4StaticRouting
  * 
  * \brief Static routing protocol for IP version 4 stacks.
  *