diff --git a/src/ca/cac.cpp b/src/ca/cac.cpp
index c94b1960d..af8928c3b 100644
--- a/src/ca/cac.cpp
+++ b/src/ca/cac.cpp
@@ -146,11 +146,11 @@ cac::~cac ()
     //
     {
         epicsAutoMutex autoMutex ( this->defaultMutex );
-        tsDLIterBD < cacLocalChannelIO > iter ( this->localChanList.first () );
-        while ( iter.valid () ) {
-            tsDLIterBD < cacLocalChannelIO > pnext = iter.itemAfter ();
-            iter->destroy ();
-            iter = pnext;
+        tsDLIterBD < cacLocalChannelIO > lclChan ( this->localChanList.first () );
+        while ( lclChan.valid () ) {
+            tsDLIterBD < cacLocalChannelIO > pnext = lclChan.itemAfter ();
+            lclChan->destroy ();
+            lclChan = pnext;
         }
     }
 
diff --git a/src/ca/cacChannel.cpp b/src/ca/cacChannel.cpp
index 89b007184..6663c2139 100644
--- a/src/ca/cacChannel.cpp
+++ b/src/ca/cacChannel.cpp
@@ -23,9 +23,9 @@ cacChannel::cacChannel () : pChannelIO (0)
 
 cacChannel::~cacChannel ()
 {
-    cacChannelIO *pIO = this->pChannelIO;
-    if ( pIO ) {
-        pIO->destroy ();
+    cacChannelIO *pChanIO = this->pChannelIO;
+    if ( pChanIO ) {
+        pChanIO->destroy ();
     }
 }