diff --git a/model/ndn-block-header.cpp b/model/ndn-block-header.cpp
index fbab70f..6665fa4 100644
--- a/model/ndn-block-header.cpp
+++ b/model/ndn-block-header.cpp
@@ -56,8 +56,8 @@
 {
 }
 
-BlockHeader::BlockHeader(const nfdFace::Transport::Packet& packet)
-  : m_block(packet.packet)
+BlockHeader::BlockHeader(const Block& packet)
+  : m_block(packet)
 {
 }