1 files changed, 1 insertions, 0 deletions
diff --git a/desktop-widgets/mainwindow.h b/desktop-widgets/mainwindow.h
index be35ecf1e..03f87ab7b 100644
--- a/desktop-widgets/mainwindow.h
+++ b/desktop-widgets/mainwindow.h
@@ -35,6 +35,7 @@ class ProfileWidget2;
 class PlannerDetails;
 class PlannerSettingsWidget;
 class LocationInformationWidget;
+class FilterWidget2;
 
 typedef std::pair<QByteArray, QVariant> WidgetProperty;
 typedef QVector<WidgetProperty> PropertyList;