diff --git a/src/ca/oldSubscription.cpp b/src/ca/oldSubscription.cpp
index e5e26d1a9..b496b0480 100644
--- a/src/ca/oldSubscription.cpp
+++ b/src/ca/oldSubscription.cpp
@@ -18,7 +18,6 @@ epicsMutex oldSubscription::freeListMutex;
 
 oldSubscription::~oldSubscription ()
 {
-    this->chan.ioCancel ( this->id );
 }
 
 void oldSubscription::current (