diff --git a/test/test_process_comms.py b/test/test_process_comms.py
index 5349a90d..93aa8307 100644
--- a/test/test_process_comms.py
+++ b/test/test_process_comms.py
@@ -35,7 +35,6 @@ async def test_continue():
     pid = process.pid
     persister.save_checkpoint(process)
     del process
-    process = None
 
     result = await launcher._continue(None, **plumpy.create_continue_body(pid)[process_comms.TASK_ARGS])
     assert result == utils.DummyProcess.EXPECTED_OUTPUTS
diff --git a/test/test_process_spec.py b/test/test_process_spec.py
index a43ad936..3be8c1d2 100644
--- a/test/test_process_spec.py
+++ b/test/test_process_spec.py
@@ -17,7 +17,6 @@ def test_get_port_namespace_base(self):
         """
         Get the root, inputs and outputs port namespaces of the ProcessSpec
         """
-        ports = self.spec.ports
         input_ports = self.spec.inputs
         output_ports = self.spec.outputs