diff --git a/jade/sphereoutput.py b/jade/sphereoutput.py
index ff4db7a2..cdb5f552 100644
--- a/jade/sphereoutput.py
+++ b/jade/sphereoutput.py
@@ -365,7 +365,7 @@ def _read_mcnp_output(self):
         stat_checks = []
         outputs = {}
         # test_path_mcnp = os.path.join(self.test_path, "mcnp")
-        for folder in os.listdir(self.test_path):
+        for folder in sorted(os.listdir(self.test_path)):
             results_path = os.path.join(self.test_path, folder, "mcnp")
             pieces = folder.split("_")
             # Get zaid
diff --git a/tests/sphereoutput_test.py b/tests/sphereoutput_test.py
index c24de5ba..a6754a80 100644
--- a/tests/sphereoutput_test.py
+++ b/tests/sphereoutput_test.py
@@ -108,8 +108,8 @@ def test_read_mcnp_output(self, session_mock: MockUpSession):
         tally_errors = outputs['M10'].tallydata['Error']
         assert 3.80420E-07 == pytest.approx(tally_values[10])
         assert 0.0406 == pytest.approx(tally_errors[175])
-        assert 0.6213346456692914 == pytest.approx(errors[0]['Neutron Flux at the external surface in Vitamin-J 175 energy groups'])
-        assert 'M10' == results[0]['Zaid']
+        assert 0.6213346456692914 == pytest.approx(errors[1]['Neutron Flux at the external surface in Vitamin-J 175 energy groups'])
+        assert 'M10' == results[1]['Zaid']
         assert stat_checks[1]['Gamma flux at the external surface [22]'] == 'Missed'
 
     def test_read_openmc_output(self, session_mock: MockUpSession):