diff --git a/RELEASE_NOTES b/RELEASE_NOTES
index 82819c2bb..c25893588 100644
--- a/RELEASE_NOTES
+++ b/RELEASE_NOTES
@@ -47,6 +47,7 @@ Bugs fixed
 - Bug 1853 - NS_LOG_FUNCTION broken on OSX 10.9
 - Bug 1855 - SixLowPanNetDevice is not correctly indexed
 - Bug 1862 - NS_LOG="Time=*|prefix_time" causes stack overflow
+- Bug 1874 - Ipv4L3Protocol::ProcessFragment: addressCombination and idProto identifiers not properly computed
 
 Release 3.19
 =============
diff --git a/src/internet/model/ipv4-l3-protocol.cc b/src/internet/model/ipv4-l3-protocol.cc
index 90caa0ba9..13a3a3a66 100644
--- a/src/internet/model/ipv4-l3-protocol.cc
+++ b/src/internet/model/ipv4-l3-protocol.cc
@@ -1290,8 +1290,8 @@ Ipv4L3Protocol::ProcessFragment (Ptr<Packet>& packet, Ipv4Header& ipHeader, uint
 {
   NS_LOG_FUNCTION (this << packet << ipHeader << iif);
 
-  uint64_t addressCombination = uint64_t (ipHeader.GetSource ().Get ()) << 32 & uint64_t (ipHeader.GetDestination ().Get ());
-  uint32_t idProto = uint32_t (ipHeader.GetIdentification ()) << 16 & uint32_t (ipHeader.GetProtocol ());
+  uint64_t addressCombination = uint64_t (ipHeader.GetSource ().Get ()) << 32 | uint64_t (ipHeader.GetDestination ().Get ());
+  uint32_t idProto = uint32_t (ipHeader.GetIdentification ()) << 16 | uint32_t (ipHeader.GetProtocol ());
   std::pair<uint64_t, uint32_t> key;
   bool ret = false;
   Ptr<Packet> p = packet->Copy ();