diff --git a/src/Vtk/Math/testing/vtkContainerBoxTest.cpp b/src/Vtk/Math/testing/vtkContainerBoxTest.cpp
index 5ab94ab..f383f8e 100644
--- a/src/Vtk/Math/testing/vtkContainerBoxTest.cpp
+++ b/src/Vtk/Math/testing/vtkContainerBoxTest.cpp
@@ -51,7 +51,7 @@ int main() {
   Vtk::ContainerBox v_box;
   v_box.findOrAddSignal(&Object::Updated)->connect([&v_box]() {
     std::cout << "box updated: "
-              << v_box.get()->GetWorldPoint(HPoint3f(1, 1, 1)) << std::endl;
+              << v_box.GetWrapped()->GetWorldPoint(HPoint3f(1, 1, 1)) << std::endl;
   });
 
   if (std::getenv("CTEST_PROJECT_NAME") == nullptr) {