diff --git a/src/flow-monitor/model/ipv4-flow-probe.cc b/src/flow-monitor/model/ipv4-flow-probe.cc
index 3df7cca9f..30420c3d0 100644
--- a/src/flow-monitor/model/ipv4-flow-probe.cc
+++ b/src/flow-monitor/model/ipv4-flow-probe.cc
@@ -117,6 +117,8 @@ private:
   Ipv4Address m_dst;      //!< IP destination
 };
 
+NS_OBJECT_ENSURE_REGISTERED (Ipv4FlowProbeTag);
+
 TypeId 
 Ipv4FlowProbeTag::GetTypeId (void)
 {
diff --git a/src/flow-monitor/model/ipv6-flow-probe.cc b/src/flow-monitor/model/ipv6-flow-probe.cc
index 4160dad65..240868266 100644
--- a/src/flow-monitor/model/ipv6-flow-probe.cc
+++ b/src/flow-monitor/model/ipv6-flow-probe.cc
@@ -232,6 +232,8 @@ Ipv6FlowProbe::Ipv6FlowProbe (Ptr<FlowMonitor> monitor,
   Config::ConnectWithoutContextFailSafe (oss.str (), MakeCallback (&Ipv6FlowProbe::QueueDropLogger, Ptr<Ipv6FlowProbe> (this)));
 }
 
+NS_OBJECT_ENSURE_REGISTERED (Ipv6FlowProbeTag);
+
 /* static */
 TypeId
 Ipv6FlowProbe::GetTypeId (void)
diff --git a/src/internet/model/ipv4-packet-info-tag.cc b/src/internet/model/ipv4-packet-info-tag.cc
index f22b6dabe..c29896ba0 100644
--- a/src/internet/model/ipv4-packet-info-tag.cc
+++ b/src/internet/model/ipv4-packet-info-tag.cc
@@ -28,6 +28,8 @@ namespace ns3 {
 
 NS_LOG_COMPONENT_DEFINE ("Ipv4PacketInfoTag");
 
+NS_OBJECT_ENSURE_REGISTERED (Ipv4PacketInfoTag);
+
 Ipv4PacketInfoTag::Ipv4PacketInfoTag ()
   : m_addr (Ipv4Address ()),
     m_ifindex (0),
diff --git a/src/internet/model/ipv6-packet-info-tag.cc b/src/internet/model/ipv6-packet-info-tag.cc
index 505fcb833..a33f677be 100644
--- a/src/internet/model/ipv6-packet-info-tag.cc
+++ b/src/internet/model/ipv6-packet-info-tag.cc
@@ -25,6 +25,8 @@
 
 namespace ns3 {
 
+NS_OBJECT_ENSURE_REGISTERED (Ipv6PacketInfoTag);
+
 Ipv6PacketInfoTag::Ipv6PacketInfoTag ()
   : m_addr (Ipv6Address ()),
     m_ifindex (0),
diff --git a/src/network/model/socket.cc b/src/network/model/socket.cc
index 5be68267f..ccf6c14fc 100644
--- a/src/network/model/socket.cc
+++ b/src/network/model/socket.cc
@@ -793,6 +793,8 @@ SocketIpTosTag::GetTos (void) const
   return m_ipTos;
 }
 
+NS_OBJECT_ENSURE_REGISTERED (SocketIpTosTag);
+
 TypeId
 SocketIpTosTag::GetTypeId (void)
 {
@@ -850,6 +852,8 @@ SocketPriorityTag::GetPriority (void) const
   return m_priority;
 }
 
+NS_OBJECT_ENSURE_REGISTERED (SocketPriorityTag);
+
 TypeId
 SocketPriorityTag::GetTypeId (void)
 {
@@ -908,6 +912,8 @@ SocketIpv6TclassTag::GetTclass (void) const
   return m_ipv6Tclass;
 }
 
+NS_OBJECT_ENSURE_REGISTERED (SocketIpv6TclassTag);
+
 TypeId
 SocketIpv6TclassTag::GetTypeId (void)
 {