diff --git a/model/fw/smart-flooding.cc b/model/fw/smart-flooding.cc
index c8b8406..97faaf7 100644
--- a/model/fw/smart-flooding.cc
+++ b/model/fw/smart-flooding.cc
@@ -66,7 +66,7 @@
 
 bool
 SmartFlooding::DoPropagateInterest (Ptr<Face> inFace,
-                                    Ptr<const InterestHeader> header,
+                                    Ptr<const Interest> header,
                                     Ptr<const Packet> origPacket,
                                     Ptr<pit::Entry> pitEntry)
 {