diff --git a/src/challenge-module/challenge-credential.hpp b/src/challenge-module/challenge-credential.hpp
index ad2b197..c0e0e48 100644
--- a/src/challenge-module/challenge-credential.hpp
+++ b/src/challenge-module/challenge-credential.hpp
@@ -57,13 +57,13 @@
 
   // For Client
   JsonSection
-  getRequirementForChallenge(int status, const std::string& challengeStatus) override;
+  getRequirementForChallenge(Status status, const std::string& challengeStatus) override;
 
   JsonSection
-  genChallengeRequestJson(int status, const std::string& challengeStatus, const JsonSection& params) override;
+  genChallengeRequestJson(Status status, const std::string& challengeStatus, const JsonSection& params) override;
 
   Block
-  genChallengeRequestTLV(int status, const std::string& challengeStatus, const JsonSection& params) override;
+  genChallengeRequestTLV(Status status, const std::string& challengeStatus, const JsonSection& params) override;
 
 PUBLIC_WITH_TESTS_ELSE_PRIVATE:
   void