diff --git a/scene/resources/2d/tile_set.cpp b/scene/resources/2d/tile_set.cpp
index 0f735777688c..6c3356a20590 100644
--- a/scene/resources/2d/tile_set.cpp
+++ b/scene/resources/2d/tile_set.cpp
@@ -6378,7 +6378,7 @@ Ref<ConvexPolygonShape2D> TileData::get_collision_polygon_shape(int p_layer_id,
 		for (int i = 0; i < size; i++) {
 			Ref<ConvexPolygonShape2D> transformed_polygon;
 			transformed_polygon.instantiate();
-			transformed_polygon->set_points(get_transformed_vertices(shapes_data.shapes[shape_index]->get_points(), p_flip_h, p_flip_v, p_transpose));
+			transformed_polygon->set_points(get_transformed_vertices(shapes_data.shapes[i]->get_points(), p_flip_h, p_flip_v, p_transpose));
 			shapes_data.transformed_shapes[key][i] = transformed_polygon;
 		}
 		return shapes_data.transformed_shapes[key][shape_index];