diff --git a/clovers-cli/src/render.rs b/clovers-cli/src/render.rs
index dd3e1c20..3c7fc0df 100644
--- a/clovers-cli/src/render.rs
+++ b/clovers-cli/src/render.rs
@@ -42,7 +42,7 @@ pub struct RenderOptions {
     #[arg(long, default_value = "random")]
     pub sampler: Sampler,
     /// BVH construction algorithm.
-    #[arg(long, default_value = "longest-axis")]
+    #[arg(long, default_value = "lam")]
     pub bvh: BvhAlgorithm,
 }