diff --git a/src/model_physics.rs b/src/model_physics.rs
index 79aea53..6925e36 100644
--- a/src/model_physics.rs
+++ b/src/model_physics.rs
@@ -487,7 +487,7 @@ impl TransformedMesh<'_>{
 		SubmeshVertId::new(
 			self.view.topology.verts.iter()
 			.enumerate()
-			.min_by_key(|(_,vert_id)|
+			.max_by_key(|(_,&vert_id)|
 				dir.dot(self.transform.vertex.transform_point3(self.view.data.verts[vert_id.get() as usize].0))
 			)
 			//assume there is more than zero vertices.