diff --git a/docs/vkrt_tutorial.md.html b/docs/vkrt_tutorial.md.html
index 07aad85..4245909 100644
--- a/docs/vkrt_tutorial.md.html
+++ b/docs/vkrt_tutorial.md.html
@@ -216,13 +216,13 @@ with utility functions for building those acceleration structures. In the header
so that we can add that helper as a member in the `HelloVulkan` class,
```` C
-nvvk::RaytracingBuilder m_rtBuilder;
+nvvk::RaytracingBuilderKHR m_rtBuilder;
````
and initialize it at the end of `initRaytracing()`:
```` C
-m_rtBuilder.setup(m_device, m_alloc, m_graphicsQueueIndex);
+m_rtBuilder.setup(m_device, &m_alloc, m_graphicsQueueIndex);
````
!!! Note Memory Management