diff --git a/src/security/key-chain.hpp b/src/security/key-chain.hpp
index 6ac1668..d0ae51a 100644
--- a/src/security/key-chain.hpp
+++ b/src/security/key-chain.hpp
@@ -38,8 +38,8 @@
 template<class Info, class Tpm>
 class KeyChainImpl : public Info, public Tpm
 {
-  typedef typename Info::Error InfoError;
-  typedef typename Tpm::Error TpmError;
+  typedef SecPublicInfo::Error InfoError;
+  typedef SecTpm::Error TpmError;
 public:
   /**
    * @brief Create an identity by creating a pair of Key-Signing-Key (KSK) for this identity and a self-signed certificate of the KSK.