diff --git a/src/ca/netiiu.h b/src/ca/netiiu.h
index b7549af8e..4f69cca08 100644
--- a/src/ca/netiiu.h
+++ b/src/ca/netiiu.h
@@ -51,9 +51,9 @@ public:
     virtual void writeNotifyRequest ( nciu &, netWriteNotifyIO &, unsigned type, unsigned nElem, const void *pValue );
     virtual void readNotifyRequest ( nciu &, netReadNotifyIO &, unsigned type, unsigned nElem );
     virtual void createChannelRequest ( nciu & );
-    virtual void clearChannelRequest ( nciu & );
+    virtual void clearChannelRequest ( ca_uint32_t sid, ca_uint32_t cid );
     virtual void subscriptionRequest ( nciu &, netSubscription &subscr );
-    virtual void subscriptionCancelRequest ( nciu &, netSubscription &subscr );
+    virtual void subscriptionCancelRequest ( nciu & chan, netSubscription & subscr );
     virtual void flushRequest ();
     virtual bool flushBlockThreshold () const;
     virtual void flushRequestIfAboveEarlyThreshold ();
diff --git a/src/ca/virtualCircuit.h b/src/ca/virtualCircuit.h
index 431a98d5e..7da323034 100644
--- a/src/ca/virtualCircuit.h
+++ b/src/ca/virtualCircuit.h
@@ -73,6 +73,7 @@ public:
     virtual void show ( unsigned level ) const;
     bool setEchoRequestPending ();
     void requestRecvProcessPostponedFlush ();
+    void clearChannelRequest ( ca_uint32_t sid, ca_uint32_t cid );
 
     bool ca_v41_ok () const;
     bool ca_v42_ok () const;
@@ -132,9 +133,8 @@ private:
     void writeNotifyRequest ( nciu &, netWriteNotifyIO &, unsigned type, unsigned nElem, const void *pValue );
     void readNotifyRequest ( nciu &, netReadNotifyIO &, unsigned type, unsigned nElem );
     void createChannelRequest ( nciu & );
-    void clearChannelRequest ( nciu & );
-    void subscriptionRequest ( nciu &, netSubscription &subscr );
-    void subscriptionCancelRequest ( nciu &, netSubscription &subscr );
+    void subscriptionRequest ( nciu &, netSubscription & subscr );
+    void subscriptionCancelRequest (  nciu & chan, netSubscription & subscr );
     void flushIfRecvProcessRequested ();
     bool flush (); // only to be called by the send thread