diff --git a/tests/regression_tests/cpp_driver/inputs_true.dat b/tests/regression_tests/cpp_driver/inputs_true.dat
index bcaac5af68..fae59e202e 100644
--- a/tests/regression_tests/cpp_driver/inputs_true.dat
+++ b/tests/regression_tests/cpp_driver/inputs_true.dat
@@ -48,13 +48,3 @@
     </space>
   </source>
 </settings>
-<?xml version='1.0' encoding='utf-8'?>
-<tallies>
-  <filter id="2" type="cell">
-    <bins>1 2 3</bins>
-  </filter>
-  <tally id="2">
-    <filters>2</filters>
-    <scores>flux</scores>
-  </tally>
-</tallies>
diff --git a/tests/regression_tests/cpp_driver/test.py b/tests/regression_tests/cpp_driver/test.py
index 02ddc621bd..3ccb126fa5 100644
--- a/tests/regression_tests/cpp_driver/test.py
+++ b/tests/regression_tests/cpp_driver/test.py
@@ -51,8 +51,8 @@ def model():
 
 class ExternalDriverTestHarness(PyAPITestHarness):
 
-    def __init__(self, executable, statepoint_name, model=None, inputs_true=None):
-        super().__init__(statepoint_name, model, inputs_true)
+    def __init__(self, executable, statepoint_name, model=None):
+        super().__init__(statepoint_name, model)
         self.executable = executable
 
     def _run_openmc(self):
@@ -61,15 +61,5 @@ class ExternalDriverTestHarness(PyAPITestHarness):
 
 
 def test_cpp_driver(driver, model):
-    harness = ExternalDriverTestHarness(driver, 'statepoint.10.h5', model, 'inputs_true1.dat')
-    harness.main()
-
-def test_openmc_run(driver, model):
-    # modify model and test again using the openmc exe
-    cell_filter = openmc.CellFilter(list(model.geometry.get_all_cells().values()))
-    tally = openmc.Tally()
-    tally.filters = [cell_filter]
-    tally.scores = ['flux']
-    model.tallies = [tally]
-    harness = PyAPITestHarness('statepoint.10.h5', model, 'inputs_true2.dat')
-    harness.main()
+    harness = ExternalDriverTestHarness(driver, 'statepoint.10.h5', model)
+    harness.main()
\ No newline at end of file