diff --git a/src/plugins/qmldesigner/designercore/include/imagecacheauxiliarydata.h b/src/plugins/qmldesigner/designercore/include/imagecacheauxiliarydata.h
index 51873038089..688ead81831 100644
--- a/src/plugins/qmldesigner/designercore/include/imagecacheauxiliarydata.h
+++ b/src/plugins/qmldesigner/designercore/include/imagecacheauxiliarydata.h
@@ -54,7 +54,7 @@ public:
     QString text;
 };
 
-using AuxiliaryData = std::variant<NullAuxiliaryData, FontCollectorSizeAuxiliaryData, FontCollectorSizesAuxiliaryData>;
+using AuxiliaryData = Utils::variant<NullAuxiliaryData, FontCollectorSizeAuxiliaryData, FontCollectorSizesAuxiliaryData>;
 
 } // namespace ImageCache