1 files changed, 3 insertions, 2 deletions
diff --git a/src/core/qscene_p.h b/src/core/qscene_p.h
index afcfb9b40..cdb85ebe6 100644
--- a/src/core/qscene_p.h
+++ b/src/core/qscene_p.h
@@ -65,6 +65,7 @@ namespace Qt3DCore {
 class QScenePrivate;
 class QAspectEngine;
 class NodePostConstructorInit;
+class QAbstractArbiter;
 
 typedef QList<QObservableInterface *> QObservableList;
 
@@ -88,8 +89,8 @@ public:
 
     QNode *rootNode() const;
 
-    void setArbiter(Qt3DCore::QLockableObserverInterface *arbiter);
-    Qt3DCore::QLockableObserverInterface *arbiter() const;
+    void setArbiter(QAbstractArbiter *arbiter);
+    QAbstractArbiter *arbiter() const;
 
     // Component -> Entities
     QVector<QNodeId> entitiesForComponent(QNodeId id) const;