2 files changed, 3 insertions, 1 deletions
diff --git a/examples/quick/scenegraph/customgeometry/beziercurve.cpp b/examples/quick/scenegraph/customgeometry/beziercurve.cpp
index 4d1cb5b670..d8d1a189e5 100644
--- a/examples/quick/scenegraph/customgeometry/beziercurve.cpp
+++ b/examples/quick/scenegraph/customgeometry/beziercurve.cpp
@@ -159,8 +159,10 @@ QSGNode *BezierCurve::updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *)
 
         vertices[i].set(x, y);
     }
+    node->markDirty(QSGNode::DirtyGeometry);
 //! [8]
 
+
 //! [9]
     return node;
 }
diff --git a/examples/quick/scenegraph/customgeometry/main.cpp b/examples/quick/scenegraph/customgeometry/main.cpp
index 5df68e87cb..0da803f8dc 100644
--- a/examples/quick/scenegraph/customgeometry/main.cpp
+++ b/examples/quick/scenegraph/customgeometry/main.cpp
@@ -52,7 +52,7 @@ int main(int argc, char **argv)
     qmlRegisterType<BezierCurve>("CustomGeometry", 1, 0, "BezierCurve");
 
     QQuickView view;
-    QSurfaceFormat format;
+    QSurfaceFormat format = view.format();
     format.setSamples(16);
     view.setFormat(format);
     view.setSource(QUrl("qrc:///scenegraph/customgeometry/main.qml"));