diff --git a/src/communication/sync-logic-handler.cpp b/src/communication/sync-logic-handler.cpp
index 01e4bd3..6b392af 100644
--- a/src/communication/sync-logic-handler.cpp
+++ b/src/communication/sync-logic-handler.cpp
@@ -43,7 +43,8 @@
   }
 };
 
-SyncLogicHandler::SyncLogicHandler(ndn::Face& face, const IsLsaNew& isLsaNew, ConfParameter& conf)
+SyncLogicHandler::SyncLogicHandler(ndn::Face& face, const IsLsaNew& isLsaNew,
+                                   const ConfParameter& conf)
   : onNewLsa(ndn::make_unique<OnNewLsa>())
   , m_syncFace(face)
   , m_isLsaNew(isLsaNew)
@@ -156,7 +157,6 @@
     BOOST_THROW_EXCEPTION(SyncLogicHandler::Error("Cannot publish routing update; SyncSocket does not exist"));
   }
 
-
   switch (type) {
   case Lsa::Type::ADJACENCY:
     publishSyncUpdate(m_adjLsaUserPrefix, seqNo);
diff --git a/src/communication/sync-logic-handler.hpp b/src/communication/sync-logic-handler.hpp
index 3a074ef..46bb18f 100644
--- a/src/communication/sync-logic-handler.hpp
+++ b/src/communication/sync-logic-handler.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2014-2017,  The University of Memphis,
+ * Copyright (c) 2014-2018,  The University of Memphis,
  *                           Regents of the University of California,
  *                           Arizona Board of Regents.
  *
@@ -61,7 +61,7 @@
     }
   };
 
-  SyncLogicHandler(ndn::Face& face, const IsLsaNew& isLsaNew, ConfParameter& conf);
+  SyncLogicHandler(ndn::Face& face, const IsLsaNew& isLsaNew, const ConfParameter& conf);
 
   /*! \brief Hook function to call whenever sync detects new data.
    *