diff --git a/tests/unit/security/validator-fixture.cpp b/tests/unit/security/validator-fixture.cpp
index 7a7ee14..5d50794 100644
--- a/tests/unit/security/validator-fixture.cpp
+++ b/tests/unit/security/validator-fixture.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2013-2021 Regents of the University of California.
+ * Copyright (c) 2013-2022 Regents of the University of California.
  *
  * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
  *
@@ -79,7 +79,6 @@
 InterestV02Pkt::makeName(Name name, KeyChain& keyChain)
 {
   Interest interest(name);
-  interest.setCanBePrefix(false);
   SigningInfo params;
   params.setSignedInterestFormat(SignedInterestFormat::V02);
   keyChain.sign(interest, params);
@@ -90,7 +89,6 @@
 InterestV03Pkt::makeName(Name name, KeyChain& keyChain)
 {
   Interest interest(name);
-  interest.setCanBePrefix(false);
   SigningInfo params;
   params.setSignedInterestFormat(SignedInterestFormat::V03);
   keyChain.sign(interest, params);