diff --git a/demos/optical_bench/src/optix_context_manager.cpp b/demos/optical_bench/src/optix_context_manager.cpp
index 7bb40fa56886780199d8bc1b393bead9fbaed96b..25791c69c23a578e074734117bfa1c7594440f1f 100644
--- a/demos/optical_bench/src/optix_context_manager.cpp
+++ b/demos/optical_bench/src/optix_context_manager.cpp
@@ -72,7 +72,7 @@ OptixContextManager::OptixContextManager() {
 
   createTargetGeometry();
   createLensGeometry();
-  createDebugMaterial();
+  // createDebugMaterial();
   createTargetMaterial();
   createSkybox();