diff --git a/model/fw/best-route.cc b/model/fw/best-route.cc
index 08bbd7c..59f8720 100644
--- a/model/fw/best-route.cc
+++ b/model/fw/best-route.cc
@@ -65,7 +65,7 @@
 
 bool
 BestRoute::DoPropagateInterest (Ptr<Face> inFace,
-                                Ptr<const InterestHeader> header,
+                                Ptr<const Interest> header,
                                 Ptr<const Packet> origPacket,
                                 Ptr<pit::Entry> pitEntry)
 {