diff --git a/src/sync-logic.h b/src/sync-logic.h
index b7152cc..e18a01b 100644
--- a/src/sync-logic.h
+++ b/src/sync-logic.h
@@ -85,11 +85,13 @@
    */
   SyncLogic (const ndn::Name& syncPrefix,
              ndn::Ptr<SyncPolicyManager> syncPolicyManager,
+             ndn::Ptr<ndn::Wrapper> handler,
              LogicUpdateCallback onUpdate,
              LogicRemoveCallback onRemove);
 
   SyncLogic (const ndn::Name& syncPrefix,
              ndn::Ptr<SyncPolicyManager> syncPolicyManager,
+             ndn::Ptr<ndn::Wrapper> handler,
              LogicPerBranchCallback onUpdateBranch);
 
   ~SyncLogic ();