diff --git a/quic/test_tools/crypto_test_utils.cc b/quic/test_tools/crypto_test_utils.cc
index e3e649e..27e47b2 100644
--- a/quic/test_tools/crypto_test_utils.cc
+++ b/quic/test_tools/crypto_test_utils.cc
@@ -692,6 +692,8 @@
     // them into |framer|, perform the decryption with them, and then swap ther
     // back.
     QuicConnectionPeer::SwapCrypters(dest_conn, framer.framer());
+    QuicConnectionPeer::AddBytesReceived(
+        dest_conn, source_conn->encrypted_packets_[index]->length());
     if (!framer.ProcessPacket(*source_conn->encrypted_packets_[index])) {
       // The framer will be unable to decrypt forward-secure packets sent after
       // the handshake is complete. Don't treat them as handshake packets.