diff --git a/tests/unit-tests/ca-module.t.cpp b/tests/unit-tests/ca-module.t.cpp
index 4f1f1bf..4e3a94a 100644
--- a/tests/unit-tests/ca-module.t.cpp
+++ b/tests/unit-tests/ca-module.t.cpp
@@ -123,7 +123,6 @@
   BOOST_CHECK_EQUAL(count, 1);
 }
 
-
 BOOST_AUTO_TEST_CASE(HandleProbeUsingDefaultHandler)
 {
   auto identity = addIdentity(Name("/ndn"));
@@ -380,7 +379,7 @@
 
       auto paramList = pinChallenge.getRequestedParameterList(client.m_status, client.m_challengeStatus);
       auto request = ca.getCertificateRequest(*challengeInterest2);
-      auto secret = request.m_challengeSecrets.get(ChallengePin::PARAMETER_KEY_CODE, "");
+      auto secret = request.m_challengeState->m_secrets.get(ChallengePin::PARAMETER_KEY_CODE, "");
       std::get<1>(paramList[0]) = secret;
       challengeInterest3 = client.generateChallengeInterest(pinChallenge.genChallengeRequestTLV(client.m_status,
                                                                                                 client.m_challengeStatus,