diff --git a/tests/unit-tests/model/ndn-block-header.t.cpp b/tests/unit-tests/model/ndn-block-header.t.cpp
index 2027d41..a8e10a9 100644
--- a/tests/unit-tests/model/ndn-block-header.t.cpp
+++ b/tests/unit-tests/model/ndn-block-header.t.cpp
@@ -76,7 +76,7 @@
   nfd::face::Transport::Packet packet(lpPacket.wireEncode());
   BlockHeader header(packet);
 
-  BOOST_CHECK_EQUAL(header.GetSerializedSize(), 1369);
+  BOOST_CHECK_EQUAL(header.GetSerializedSize(), 1350);
 
   {
     Ptr<Packet> packet = Create<Packet>();