diff --git a/experiments/2024-12-09/src/topology/sweep.rs b/experiments/2024-12-09/src/topology/sweep.rs
index 9642c8171..9121954fa 100644
--- a/experiments/2024-12-09/src/topology/sweep.rs
+++ b/experiments/2024-12-09/src/topology/sweep.rs
@@ -48,7 +48,7 @@ impl Operation for Sweep {
     }
 
     fn tri_mesh(&self) -> TriMesh {
-        self.output.tri_mesh()
+        self.output().tri_mesh()
     }
 
     fn children(&self) -> Vec<HandleAny> {