diff --git a/src/qt/askpassphrasedialog.h b/src/qt/askpassphrasedialog.h
index 3a66fb5f..838ad21b 100644
--- a/src/qt/askpassphrasedialog.h
+++ b/src/qt/askpassphrasedialog.h
@@ -41,6 +41,8 @@ private:
 
 private slots:
     void textChanged();
+
+protected:
     bool event(QEvent *event);
     bool eventFilter(QObject *object, QEvent *event);
 };