diff --git a/RELEASE_NOTES b/RELEASE_NOTES
index 170787011..95635691b 100644
--- a/RELEASE_NOTES
+++ b/RELEASE_NOTES
@@ -37,6 +37,7 @@ Bugs fixed
 - Bug 2353 - TCP Vegas implementation
 - Bug 2375 - Flowmonitor parse crashes when no pkt is received
 - Bug 2377 - SocketIpTosTag and SocketIpv6TclassTag may be added twice in UDP
+- Bug 2383 - IPv4 header for reassembled packets reports a wrong payload size
 
 Known issues
 ------------
diff --git a/src/internet/model/ipv4-l3-protocol.cc b/src/internet/model/ipv4-l3-protocol.cc
index 65d5b5097..a7e747d8b 100644
--- a/src/internet/model/ipv4-l3-protocol.cc
+++ b/src/internet/model/ipv4-l3-protocol.cc
@@ -1070,7 +1070,7 @@ Ipv4L3Protocol::LocalDeliver (Ptr<const Packet> packet, Ipv4Header const&ip, uin
         }
       NS_LOG_LOGIC ("Got last fragment, Packet is complete " << *p );
       ipHeader.SetFragmentOffset (0);
-      ipHeader.SetPayloadSize (p->GetSize () + ipHeader.GetSerializedSize ());
+      ipHeader.SetPayloadSize (p->GetSize ());
     }
 
   m_localDeliverTrace (ipHeader, p, iif);