diff --git a/experiments/2025-03-18/src/main.rs b/experiments/2025-03-18/src/main.rs
index 987f24bcb..87f25f62a 100644
--- a/experiments/2025-03-18/src/main.rs
+++ b/experiments/2025-03-18/src/main.rs
@@ -12,7 +12,7 @@ fn main() -> anyhow::Result<()> {
         model::model(&viewer)
     })?;
 
-    fj_export::export(&tri_mesh, "output.3mf")?;
+    fj_export::export(tri_mesh.triangles.iter(), "output.3mf")?;
 
     Ok(())
 }