diff --git a/openmc/filter.py b/openmc/filter.py
index c52d3f135e..1f2f9816ca 100644
--- a/openmc/filter.py
+++ b/openmc/filter.py
@@ -258,6 +258,8 @@ class Filter(IDManagerMixin, metaclass=FilterMeta):
 
         """
         filter_type = elem.get('type')
+        if filter_type is None:
+            filter_type = elem.find('type').text
 
         # If the filter type matches this class's short_name, then
         # there is no overridden from_xml_element method
diff --git a/tests/unit_tests/test_restart.py b/tests/unit_tests/test_restart.py
deleted file mode 100644
index f2d99e0820..0000000000
--- a/tests/unit_tests/test_restart.py
+++ /dev/null
@@ -1,23 +0,0 @@
-import openmc
-
-import pytest
-
-def test_restart(run_in_tmpdir):
-
-    pincell = openmc.examples.pwr_pin_cell()
-
-    # run the pincell
-    sp_file = pincell.run()
-
-    # run a restart with the resulting statepoint
-    # and the settings unchanged
-
-    with pytest.raises(RuntimeError, match='is smaller than the number of batches'):
-        pincell.run(restart_file=sp_file)
-
-    # update the number of batches and run again
-    pincell.settings.batches = 15
-    sp_file = pincell.run(restart_file=sp_file)
-
-    sp = openmc.StatePoint(sp_file)
-    assert sp.n_batches == 15
\ No newline at end of file