diff --git a/src/libslic3r/Model.cpp b/src/libslic3r/Model.cpp
index 2844f644c0..4efa0264a2 100644
--- a/src/libslic3r/Model.cpp
+++ b/src/libslic3r/Model.cpp
@@ -1545,7 +1545,11 @@ unsigned int ModelObject::check_instances_print_volume_state(const BoundingBoxf3
         unsigned int inside_outside = 0;
         for (const ModelVolume *vol : this->volumes)
             if (vol->is_model_part()) {
+#if ENABLE_FIX_SINKING_OBJECT_OUT_OF_BED_DETECTION
+                BoundingBoxf3 bb = vol->mesh().transformed_bounding_box(model_instance->get_matrix() * vol->get_matrix(), 0.0);
+#else
                 BoundingBoxf3 bb = vol->get_convex_hull().transformed_bounding_box(model_instance->get_matrix() * vol->get_matrix());
+#endif // ENABLE_FIX_SINKING_OBJECT_OUT_OF_BED_DETECTION
                 if (print_volume.contains(bb))
                     inside_outside |= INSIDE;
                 else if (print_volume.intersects(bb))