diff --git a/src/route/fib.hpp b/src/route/fib.hpp
index ba4d87b..3e4ef68 100644
--- a/src/route/fib.hpp
+++ b/src/route/fib.hpp
@@ -53,7 +53,7 @@
 {
 public:
   Fib(ndn::Face& face, ndn::Scheduler& scheduler, AdjacencyList& adjacencyList,
-      ConfParameter& conf, ndn::security::v2::KeyChain& keyChain);
+      ConfParameter& conf, ndn::security::KeyChain& keyChain);
 
   /*! \brief Completely remove a name prefix from the FIB.
    *