diff --git a/protocol.c b/protocol.c
index 2237ba8..9791839 100644
--- a/protocol.c
+++ b/protocol.c
@@ -852,7 +852,8 @@ enet_protocol_handle_incoming_commands (ENetHost * host, ENetEvent * event)
 
        if (peer -> state == ENET_PEER_STATE_DISCONNECTED ||
            peer -> state == ENET_PEER_STATE_ZOMBIE ||
-           (host -> receivedAddress.host != peer -> address.host &&
+           ((host -> receivedAddress.host != peer -> address.host ||
+             host -> receivedAddress.port != peer -> address.port) &&
              peer -> address.host != ENET_HOST_BROADCAST) ||
            (peer -> outgoingPeerID < ENET_PROTOCOL_MAXIMUM_PEER_ID &&
             sessionID != peer -> incomingSessionID))