diff --git a/instantmessagingwidget.h b/instantmessagingwidget.h
index caad594..3aaf04a 100644
--- a/instantmessagingwidget.h
+++ b/instantmessagingwidget.h
@@ -32,7 +32,7 @@
 class InstantMessagingWidget;
 }
 
-class InstantMessagingWidget : public QWidget
+class InstantMessagingWidget final : public QWidget
 {
     Q_OBJECT
 
@@ -42,7 +42,8 @@
     void setMediaText(Call* call);
 
 protected:
-    virtual void keyPressEvent(QKeyEvent *event);
+    virtual void keyPressEvent(QKeyEvent *event) override;
+    virtual void showEvent(QShowEvent * event) override;
 
 //UI SLOTS
 private slots: