clean closure api
diff --git a/ccnx/ccnx-tunnel.h b/ccnx/ccnx-tunnel.h
index 104c7cf..05f981a 100644
--- a/ccnx/ccnx-tunnel.h
+++ b/ccnx/ccnx-tunnel.h
@@ -89,7 +89,7 @@
 class TunnelClosure : public Closure
 {
 public:
-  TunnelClosure(int retry, const DataCallback &dataCallback, CcnxTunnel *tunnel, const Name &originalInterest, const TimeoutCallback &timeoutCallback = TimeoutCallback());
+  TunnelClosure(const DataCallback &dataCallback, CcnxTunnel *tunnel, const Name &originalInterest, const TimeoutCallback &timeoutCallback = TimeoutCallback());
 
   TunnelClosure(const Closure *closure, CcnxTunnel *tunnel, const Name &originalInterest);