diff --git a/src/security/key-chain.hpp b/src/security/key-chain.hpp
index bb0f650..db71884 100644
--- a/src/security/key-chain.hpp
+++ b/src/security/key-chain.hpp
@@ -35,7 +35,7 @@
   typedef TypeTpm Tpm;
 };
 
-class KeyChain
+class KeyChain : noncopyable
 {
 public:
   class Error : public std::runtime_error