diff --git a/openmc/deplete/integrator/predictor.py b/openmc/deplete/integrator/predictor.py
index b30484c695..54a6258dc4 100644
--- a/openmc/deplete/integrator/predictor.py
+++ b/openmc/deplete/integrator/predictor.py
@@ -103,4 +103,4 @@ def predictor(operator, timesteps, power=None, power_density=None,
         op_results = [operator(x[0], power[-1])]
 
         # Create results, write to disk
-        Results.save(operator, x, op_results, [t, t], p, i_res + len(timesteps), proc_time)
+        Results.save(operator, x, op_results, [t, t], p, i_res + len(timesteps), None)
diff --git a/tests/unit_tests/test_deplete_predictor.py b/tests/unit_tests/test_deplete_predictor.py
index 0af320eb96..80b060cc9e 100644
--- a/tests/unit_tests/test_deplete_predictor.py
+++ b/tests/unit_tests/test_deplete_predictor.py
@@ -38,4 +38,6 @@ def test_predictor(run_in_tmpdir):
 
     # Test structure of depletion time dataset
 
-    assert res.get_depletion_time().shape == (len(dt), 1)
+    dep_time = res.get_depletion_time()
+    assert dep_time.shape == (len(dt), 1)
+    assert all(dep_time > 0)