diff --git a/src/ca/nciu.cpp b/src/ca/nciu.cpp
index f153fb37c..9b8cd7888 100644
--- a/src/ca/nciu.cpp
+++ b/src/ca/nciu.cpp
@@ -364,6 +364,13 @@ int nciu::subscriptionMsg ( netSubscription &subscr, bool userThread  )
     return status;
 }
 
+void nciu::unistallSubscription ( netSubscription &subscr )
+{
+    if ( this->f_connected ) {
+        this->piiu->unistallSubscription ( *this, subscr );
+    }
+}
+
 void nciu::incrementOutstandingIO ()
 {
     this->cacCtx.incrementOutstandingIO ();
diff --git a/src/ca/netiiu.cpp b/src/ca/netiiu.cpp
index da9f21840..e6a443d9d 100644
--- a/src/ca/netiiu.cpp
+++ b/src/ca/netiiu.cpp
@@ -200,6 +200,10 @@ int netiiu::subscriptionCancelRequest ( netSubscription & )
     return ECA_DISCONNCHID;
 }
 
+void netiiu::unistallSubscription ( nciu &, netSubscription & )
+{
+}
+
 void netiiu::hostName ( char *pBuf, unsigned bufLength ) const
 {
     if ( bufLength ) {