diff --git a/src/ca/tcpRecvWatchdog.h b/src/ca/tcpRecvWatchdog.h
index 289457674..feba2cc59 100644
--- a/src/ca/tcpRecvWatchdog.h
+++ b/src/ca/tcpRecvWatchdog.h
@@ -24,7 +24,7 @@ class tcpiiu;
 
 class tcpRecvWatchdog : private epicsTimerNotify {
 public:
-    tcpRecvWatchdog ( tcpiiu &, double periodIn, epicsTimerQueue & );
+    tcpRecvWatchdog ( cac &, tcpiiu &, double periodIn, epicsTimerQueue & );
     virtual ~tcpRecvWatchdog ();
     void rescheduleRecvTimer ();
     void sendBacklogProgressNotify ();
@@ -37,7 +37,8 @@ public:
 private:
     const double period;
     epicsTimer & timer;
-    tcpiiu &iiu;
+    tcpiiu & iiu;
+    cac & cacRef;
     bool responsePending;
     bool beaconAnomaly;
     expireStatus expire ( const epicsTime & currentTime );
diff --git a/src/ca/tcpSendWatchdog.h b/src/ca/tcpSendWatchdog.h
index b07116973..4e1812d5a 100644
--- a/src/ca/tcpSendWatchdog.h
+++ b/src/ca/tcpSendWatchdog.h
@@ -22,13 +22,14 @@
 
 class tcpSendWatchdog : private epicsTimerNotify {
 public:
-    tcpSendWatchdog ( tcpiiu &, double periodIn, epicsTimerQueue & queueIn );
+    tcpSendWatchdog ( cac &, tcpiiu &, double periodIn, epicsTimerQueue & queueIn );
     virtual ~tcpSendWatchdog ();
     void start ();
     void cancel ();
 private:
     const double period;
     epicsTimer & timer;
+    cac & cacRef;
     tcpiiu & iiu;
     expireStatus expire ( const epicsTime & currentTime );
 	tcpSendWatchdog ( const tcpSendWatchdog & );