diff --git a/tests/unit_tests/test_universe.py b/tests/unit_tests/test_universe.py
index 39d1eec21c..26b7779a70 100644
--- a/tests/unit_tests/test_universe.py
+++ b/tests/unit_tests/test_universe.py
@@ -107,11 +107,13 @@ def test_clone():
     c2.fill = openmc.Material()
     c3 = openmc.Cell()
     u1 = openmc.Universe(name='cool', cells=(c1, c2, c3))
+    u1.volume = 1.
 
     u2 = u1.clone()
     assert u2.name == u1.name
     assert u2.cells != u1.cells
     assert u2.get_all_materials() != u1.get_all_materials()
+    assert u2.volume == u1.volume
 
     u2 = u1.clone(clone_materials=False)
     assert u2.get_all_materials() == u1.get_all_materials()
@@ -120,14 +122,33 @@ def test_clone():
     assert next(iter(u3.cells.values())).region ==\
          next(iter(u1.cells.values())).region
 
-    dagmc_u = openmc.DAGMCUniverse(filename="")
+    # Change attributes, make sure clone stays intact
+    u1.volume = 2.
+    u1.name = "different name"
+    assert u3.volume != u1.volume
+    assert u3.name != u1.name
+
+    # Test cloning a DAGMC universe
+    dagmc_u = openmc.DAGMCUniverse(filename="", name="DAGMC universe")
+    dagmc_u.volume = 1.
     dagmc_u.auto_geom_ids = True
     dagmc_u.auto_mat_ids = True
     dagmc_u1 = dagmc_u.clone()
     assert dagmc_u1.name == dagmc_u.name
+    assert dagmc_u1.volume == dagmc_u.volume
     assert dagmc_u1.auto_geom_ids == dagmc_u.auto_geom_ids
     assert dagmc_u1.auto_mat_ids == dagmc_u.auto_mat_ids
 
+    # Change attributes, check the clone remained intact
+    dagmc_u.name = "another name"
+    dagmc_u.auto_geom_ids = False
+    dagmc_u.auto_mat_ids = False
+    dagmc_u.volume = 2.
+    assert dagmc_u1.name != dagmc_u.name
+    assert dagmc_u1.volume != dagmc_u.volume
+    assert dagmc_u1.auto_geom_ids != dagmc_u.auto_geom_ids
+    assert dagmc_u1.auto_mat_ids != dagmc_u.auto_mat_ids
+
 
 def test_create_xml(cell_with_lattice):
     cells = [openmc.Cell() for i in range(5)]