diff --git a/masque/test/test_ports2data.py b/masque/test/test_ports2data.py
index f461cb8..72f6870 100644
--- a/masque/test/test_ports2data.py
+++ b/masque/test/test_ports2data.py
@@ -55,3 +55,22 @@ def test_data_to_ports_hierarchical() -> None:
     assert_allclose(parent.ports["A"].offset, [100, 105], atol=1e-10)
     assert parent.ports["A"].rotation is not None
     assert_allclose(parent.ports["A"].rotation, numpy.pi / 2, atol=1e-10)
+
+
+def test_data_to_ports_hierarchical_scaled_ref() -> None:
+    lib = Library()
+
+    child = Pattern()
+    layer = (10, 0)
+    child.label(layer=layer, string="A:type1 0", offset=(5, 0))
+    lib["child"] = child
+
+    parent = Pattern()
+    parent.ref("child", offset=(100, 100), rotation=numpy.pi / 2, scale=2)
+
+    data_to_ports([layer], lib, parent, max_depth=1)
+
+    assert "A" in parent.ports
+    assert_allclose(parent.ports["A"].offset, [100, 110], atol=1e-10)
+    assert parent.ports["A"].rotation is not None
+    assert_allclose(parent.ports["A"].rotation, numpy.pi / 2, atol=1e-10)