diff --git a/src/ATBAPP/ATBVMCPlugin.h b/src/ATBAPP/ATBVMCPlugin.h
index f1887ba..2bda60e 100644
--- a/src/ATBAPP/ATBVMCPlugin.h
+++ b/src/ATBAPP/ATBVMCPlugin.h
@@ -12,10 +12,6 @@
 #include "include/interfaces.h"
 #include "vmc.h"
 
-class ATBHMIconfig;
-class AppControl;
-class ATBSystem;
-
 class ATBVMCPlugin : public VMCInterface {
     Q_OBJECT
     Q_INTERFACES(ATBAPPplugin)
@@ -30,8 +26,10 @@ public:
 
     // ----------------------------------------------------------------------------
     // interface:
-    PLUGIN_STATE initVMCPlugin(QObject *eventReceiver, QSettings const &settings);
-    PLUGIN_STATE initVMCPlugin(QObject *eventReceiver, ATBHMIconfig *config);
+    virtual PLUGIN_STATE initVMCPlugin(QObject *eventReceiver,
+                                       QObject *atbSystem,
+                                       QObject *hmiConfig,
+                                       QSettings const &settings) override;
 
     // mandantory ATBAPP plugin methods: ------------------------------------------
     PLUGIN_STATE getState() override;
@@ -61,9 +59,8 @@ private:
    QString m_serialPortName;
    bool m_useDebug;
    PLUGIN_STATE m_pluginState;
-   QObject* m_eventReceiver;
-   QSettings const *m_settings;
-   ATBHMIconfig *m_config;
+   QObject* m_appControl;
+   VMC *m_vmc;
 };
 
 #endif // ATBDEVICECONTROLLERPLUGIN_H