diff --git a/src/chat-message.cpp b/src/chat-message.cpp
index 21707d2..7932321 100644
--- a/src/chat-message.cpp
+++ b/src/chat-message.cpp
@@ -23,7 +23,7 @@
   this->wireDecode(chatMsgWire);
 }
 
-template<bool T>
+template<ndn::encoding::Tag T>
 size_t
 ChatMessage::wireEncode(ndn::EncodingImpl<T>& encoder) const
 {