diff --git a/tests/unit_tests/test_settings.py b/tests/unit_tests/test_settings.py
index c3ff72879..2b173834e 100644
--- a/tests/unit_tests/test_settings.py
+++ b/tests/unit_tests/test_settings.py
@@ -20,6 +20,8 @@ def test_export_to_xml(run_in_tmpdir):
     s.sourcepoint = {'batches': [50, 150, 500, 1000], 'separate': True,
                      'write': True, 'overwrite': True}
     s.statepoint = {'batches': [50, 150, 500, 1000]}
+    s.surf_src_read = {'path': 'surface_source_1.h5'}
+    s.surf_src_write = {'surf_ids': [2], 'max_surf_banks': 200}
     s.confidence_intervals = True
     s.ptables = True
     s.seed = 17
@@ -76,6 +78,8 @@ def test_export_to_xml(run_in_tmpdir):
     assert s.sourcepoint == {'batches': [50, 150, 500, 1000], 'separate': True,
                              'write': True, 'overwrite': True}
     assert s.statepoint == {'batches': [50, 150, 500, 1000]}
+    assert s.surf_src_read == {'path': 'surface_source_1.h5'}
+    assert s.surf_src_write == {'surf_ids': [2], 'max_surf_banks': 200}
     assert s.confidence_intervals
     assert s.ptables
     assert s.seed == 17