diff --git a/lib/bsp_loader/src/bsp.rs b/lib/bsp_loader/src/bsp.rs
index ca203c5..719c378 100644
--- a/lib/bsp_loader/src/bsp.rs
+++ b/lib/bsp_loader/src/bsp.rs
@@ -113,11 +113,10 @@ pub fn convert<'a>(
 					groups:vec![polygon_group_id],
 				})
 			}
-			physics_group.groups.push(polygon_group_id);
 			model::PolygonGroup::PolygonList(model::PolygonList::new(polygon_list))
 		}).collect();
 
-		mb.build(polygon_groups,graphics_groups,vec![physics_group])
+		mb.build(polygon_groups,graphics_groups,vec![])
 	}).collect();
 
 	let world_models:Vec<model::Model>=