diff --git a/benches/simple_scene.rs b/benches/simple_scene.rs
index 9b85b4c..dc44a10 100644
--- a/benches/simple_scene.rs
+++ b/benches/simple_scene.rs
@@ -1,6 +1,6 @@
 use criterion::{criterion_group, criterion_main, Criterion};
 
-use vanrijn::colour::{ColourRgbF, NamedColour};
+use vanrijn::colour::{ColourRgbF, NamedColour, Spectrum};
 use vanrijn::materials::ReflectiveMaterial;
 use vanrijn::math::Vec3;
 use vanrijn::mesh::load_obj;
@@ -26,7 +26,9 @@ fn simple_scene(bencher: &mut Criterion) {
                 load_obj(
                     &model_file_path,
                     Arc::new(ReflectiveMaterial {
-                        colour: ColourRgbF::from_named(NamedColour::Yellow),
+                        colour: Spectrum::reflection_from_linear_rgb(&ColourRgbF::from_named(
+                            NamedColour::Yellow,
+                        )),
                         diffuse_strength: 0.05,
                         reflection_strength: 0.9,
                     }),