1 files changed, 2 insertions, 0 deletions

diff --git a/core/applets/cardmon/cardmonimpl.cpp b/core/applets/cardmon/cardmonimpl.cpp
index 0aa55de..265214e 100644
--- a/core/applets/cardmon/cardmonimpl.cpp
+++ b/core/applets/cardmon/cardmonimpl.cpp
@@ -18,23 +18,25 @@ QWidget *CardMonitorImpl::applet( QWidget *parent ) {
 }
 
 int CardMonitorImpl::position() const {
     return 7;
 }
 
 QRESULT CardMonitorImpl::queryInterface( const QUuid &uuid, QUnknownInterface **iface ) {
     *iface = 0;
     if ( uuid == IID_QUnknown ) {
         *iface = this;
     } else if ( uuid == IID_TaskbarApplet ) {
         *iface = this;
+    } else {
+        return QS_FALSE;
     }
 
     if ( *iface ) {
         (*iface)->addRef();
     }
     return QS_OK;
 }
 
 Q_EXPORT_INTERFACE() {
     Q_CREATE_INSTANCE( CardMonitorImpl )
 }