diff --git a/src/repo-command-parameter.hpp b/src/repo-command-parameter.hpp
index 3c4cd54..d461cdd 100644
--- a/src/repo-command-parameter.hpp
+++ b/src/repo-command-parameter.hpp
@@ -43,12 +43,12 @@
 class RepoCommandParameter
 {
 public:
-  class Error : public ndn::Tlv::Error
+  class Error : public ndn::tlv::Error
   {
   public:
     explicit
     Error(const std::string& what)
-      : ndn::Tlv::Error(what)
+      : ndn::tlv::Error(what)
     {
     }
   };