diff --git a/src/admc/permission_control_widgets/read_write_permissions_widget.cpp b/src/admc/permission_control_widgets/read_write_permissions_widget.cpp
index 5af02d75..4e2a7b92 100644
--- a/src/admc/permission_control_widgets/read_write_permissions_widget.cpp
+++ b/src/admc/permission_control_widgets/read_write_permissions_widget.cpp
@@ -43,7 +43,7 @@ protected:
     }
 };
 
-ReadWritePermissionsWidget::ReadWritePermissionsWidget(QWidget *parent = nullptr) : PermissionsWidget(parent) {
+ReadWritePermissionsWidget::ReadWritePermissionsWidget(QWidget *parent) : PermissionsWidget(parent) {
     v_layout->addWidget(rights_view);
 
     rights_sort_model = new ReadWriteRightsSortModel(this);
diff --git a/src/admc/permission_control_widgets/read_write_permissions_widget.h b/src/admc/permission_control_widgets/read_write_permissions_widget.h
index ecf05db0..8f74bd43 100644
--- a/src/admc/permission_control_widgets/read_write_permissions_widget.h
+++ b/src/admc/permission_control_widgets/read_write_permissions_widget.h
@@ -8,7 +8,7 @@ class ReadWritePermissionsWidget final : public PermissionsWidget {
     Q_OBJECT
 
 public:
-    explicit ReadWritePermissionsWidget(QWidget *parent);
+    explicit ReadWritePermissionsWidget(QWidget *parent = nullptr);
     ~ReadWritePermissionsWidget();
 
     virtual void init(const QStringList &target_classes, security_descriptor *sd_arg) override;