diff --git a/src/protocol-detail/new.cpp b/src/protocol-detail/new.cpp
index 0c33ba8..05c7f5c 100644
--- a/src/protocol-detail/new.cpp
+++ b/src/protocol-detail/new.cpp
@@ -33,8 +33,7 @@
 _LOG_INIT(ndncert.client);
 
 Block
-NEW::encodeApplicationParameters(const std::string& ecdhPub, const security::v2::Certificate& certRequest,
-                                const shared_ptr<Data>& probeToken)
+NEW::encodeApplicationParameters(const std::string& ecdhPub, const security::v2::Certificate& certRequest)
 {
   Block request = makeEmptyBlock(tlv::ApplicationParameters);
   std::stringstream ss;
diff --git a/src/protocol-detail/new.hpp b/src/protocol-detail/new.hpp
index ee141d7..63bec73 100644
--- a/src/protocol-detail/new.hpp
+++ b/src/protocol-detail/new.hpp
@@ -36,8 +36,7 @@
    * For client side use.
    */
   static Block
-  encodeApplicationParameters(const std::string& ecdhPub, const security::v2::Certificate& certRequest,
-                              const shared_ptr<Data>& probeToken);
+  encodeApplicationParameters(const std::string& ecdhPub, const security::v2::Certificate& certRequest);
 
   /**
    * Encode CA's response of NEW Interest into a content TLV for NEW Data packet.