diff --git a/src/lp/prefix-announcement.hpp b/src/lp/prefix-announcement.hpp
index 135cc21..ef2b447 100644
--- a/src/lp/prefix-announcement.hpp
+++ b/src/lp/prefix-announcement.hpp
@@ -43,11 +43,7 @@
   class Error : public ndn::tlv::Error
   {
   public:
-    explicit
-    Error(const std::string& what)
-      : ndn::tlv::Error(what)
-    {
-    }
+    using ndn::tlv::Error::Error;
   };
 
   PrefixAnnouncement();