diff --git a/src/nlsr.hpp b/src/nlsr.hpp
index e435593..f562bc9 100644
--- a/src/nlsr.hpp
+++ b/src/nlsr.hpp
@@ -176,9 +176,9 @@
   HelloProtocol m_helloProtocol;
 
 private:
-  ndn::util::signal::ScopedConnection m_onNewLsaConnection;
-  ndn::util::signal::ScopedConnection m_onPrefixRegistrationSuccess;
-  ndn::util::signal::ScopedConnection m_onInitialHelloDataValidated;
+  ndn::signal::ScopedConnection m_onNewLsaConnection;
+  ndn::signal::ScopedConnection m_onPrefixRegistrationSuccess;
+  ndn::signal::ScopedConnection m_onInitialHelloDataValidated;
 
 PUBLIC_WITH_TESTS_ELSE_PRIVATE:
   ndn::mgmt::Dispatcher m_dispatcher;