diff --git a/src/main.cpp b/src/main.cpp
index f9b8ab37e..98114c042 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -4822,7 +4822,6 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
             const CInv &inv = vInv[nInv];
 
             boost::this_thread::interruption_point();
-            pfrom->AddInventoryKnown(inv);
 
             bool fAlreadyHave = AlreadyHave(inv);
             LogPrint("net", "got inv: %s  %s peer=%d\n", inv.ToString(), fAlreadyHave ? "have" : "new", pfrom->id);
@@ -4852,6 +4851,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
             }
             else
             {
+                pfrom->AddInventoryKnown(inv);
                 if (fBlocksOnly)
                     LogPrint("net", "transaction (%s) inv sent in violation of protocol peer=%d\n", inv.hash.ToString(), pfrom->id);
                 else if (!fAlreadyHave && !fImporting && !fReindex && !IsInitialBlockDownload())
@@ -5239,10 +5239,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
         CBlock block;
         vRecv >> block;
 
-        CInv inv(MSG_BLOCK, block.GetHash());
-        LogPrint("net", "received block %s peer=%d\n", inv.hash.ToString(), pfrom->id);
-
-        pfrom->AddInventoryKnown(inv);
+        LogPrint("net", "received block %s peer=%d\n", block.GetHash().ToString(), pfrom->id);
 
         CValidationState state;
         // Process all blocks from whitelisted peers, even if not requested,
@@ -5255,7 +5252,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
         if (state.IsInvalid(nDoS)) {
             assert (state.GetRejectCode() < REJECT_INTERNAL); // Blocks are never rejected with internal reject codes
             pfrom->PushMessage(NetMsgType::REJECT, strCommand, (unsigned char)state.GetRejectCode(),
-                               state.GetRejectReason().substr(0, MAX_REJECT_MESSAGE_LENGTH), inv.hash);
+                               state.GetRejectReason().substr(0, MAX_REJECT_MESSAGE_LENGTH), block.GetHash());
             if (nDoS > 0) {
                 LOCK(cs_main);
                 Misbehaving(pfrom->GetId(), nDoS);
@@ -5827,9 +5824,7 @@ bool SendMessages(CNode* pto)
                             hashToAnnounce.ToString(), chainActive.Tip()->GetBlockHash().ToString());
                     }
 
-                    // If the peer announced this block to us, don't inv it back.
-                    // (Since block announcements may not be via inv's, we can't solely rely on
-                    // setInventoryKnown to track this.)
+                    // If the peer's chain has this block, don't inv it back.
                     if (!PeerHasHeader(&state, pindex)) {
                         pto->PushInventory(CInv(MSG_BLOCK, hashToAnnounce));
                         LogPrint("net", "%s: sending inv peer=%d hash=%s\n", __func__,