diff --git a/src/ca/netReadNotifyIO.cpp b/src/ca/netReadNotifyIO.cpp
index 1bdcd9fe4..edf9e74c9 100644
--- a/src/ca/netReadNotifyIO.cpp
+++ b/src/ca/netReadNotifyIO.cpp
@@ -80,5 +80,11 @@ nciu & netReadNotifyIO::channel () const
     return this->chan;
 }
 
+void netReadNotifyIO::operator delete ( void * p )
+{
+    throw std::logic_error 
+        ( "compiler is confused about placement delete" );
+}
+
 
 
diff --git a/src/ca/netSubscription.cpp b/src/ca/netSubscription.cpp
index c9dbc27a4..1e78864a6 100644
--- a/src/ca/netSubscription.cpp
+++ b/src/ca/netSubscription.cpp
@@ -93,6 +93,11 @@ nciu & netSubscription::channel () const
     return this->chan;
 }
 
+void netSubscription::operator delete ( void * p )
+{
+    throw std::logic_error 
+        ( "compiler is confused about placement delete" );
+}