diff --git a/plugins/declarative/plugin.cpp b/plugins/declarative/plugin.cpp
index ce3004f..5d2293a 100644
--- a/plugins/declarative/plugin.cpp
+++ b/plugins/declarative/plugin.cpp
@@ -49,6 +49,7 @@ QTCOMMERCIALCHART_USE_NAMESPACE
 
 Q_DECLARE_METATYPE(QList<QPieSlice *>)
 Q_DECLARE_METATYPE(QList<QBarSet *>)
+Q_DECLARE_METATYPE(QAbstractSeries *)
 
 QTCOMMERCIALCHART_BEGIN_NAMESPACE