diff --git a/model/fw/best-route.h b/model/fw/best-route.h
index 6e17b99..f7caa19 100644
--- a/model/fw/best-route.h
+++ b/model/fw/best-route.h
@@ -58,7 +58,7 @@
   // from super
   virtual bool
   DoPropagateInterest (Ptr<Face> incomingFace,
-                       Ptr<const InterestHeader> header,
+                       Ptr<const Interest> header,
                        Ptr<const Packet> origPacket,
                        Ptr<pit::Entry> pitEntry);
 protected: