diff --git a/mainwindow.h b/mainwindow.h
index 95cfb26..36ba031 100644
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -59,6 +59,7 @@
 protected:
     bool nativeEvent(const QByteArray& eventType, void* message, long* result);
     void closeEvent(QCloseEvent* event);
+    void resizeEvent(QResizeEvent *event);
 
 public slots:
     void onRingEvent(const QString& uri);