diff --git a/src/net.h b/src/net.h
--- a/src/net.h
+++ b/src/net.h
@@ -748,7 +748,7 @@
     // List of block ids we still have announce. There is no final sorting
     // before sending, as they are always sent immediately and in the order
     // requested.
-    std::vector<uint256> vInventoryBlockToSend GUARDED_BY(cs_inventory);
+    std::vector<BlockHash> vInventoryBlockToSend GUARDED_BY(cs_inventory);
     RecursiveMutex cs_inventory;
     int64_t nNextInvSend{0};
     // Used for headers announcements - unfiltered blocks to relay.
@@ -870,7 +870,8 @@
                 setInventoryTxToSend.insert(txid);
             }
         } else if (inv.type == MSG_BLOCK) {
-            vInventoryBlockToSend.push_back(inv.hash);
+            const BlockHash hash(inv.hash);
+            vInventoryBlockToSend.push_back(hash);
         }
     }
 
diff --git a/src/net_processing.cpp b/src/net_processing.cpp
--- a/src/net_processing.cpp
+++ b/src/net_processing.cpp
@@ -4508,7 +4508,7 @@
                                           config.GetMaxBlockSize() / 1000000));
 
         // Add blocks
-        for (const uint256 &hash : pto->vInventoryBlockToSend) {
+        for (const BlockHash &hash : pto->vInventoryBlockToSend) {
             vInv.push_back(CInv(MSG_BLOCK, hash));
             if (vInv.size() == MAX_INV_SZ) {
                 connman->PushMessage(pto, msgMaker.Make(NetMsgType::INV, vInv));