diff --git a/src/debugger/CartDebug.cxx b/src/debugger/CartDebug.cxx
index daeee9f72..7e76d2dc1 100644
--- a/src/debugger/CartDebug.cxx
+++ b/src/debugger/CartDebug.cxx
@@ -1576,9 +1576,7 @@ void CartDebug::AccessTypeAsString(ostream& buf, Device::AccessType type) const
     case Device::AUD:    buf << "AUD";    break;
     case Device::DATA:   buf << "DATA";   break;
     case Device::ROW:    buf << "ROW";    break;
-    case Device::REFERENCED:
-    case Device::VALID_ENTRY:
-    case Device::NONE:                    break;
+    default:                              break;
   }
 }