diff --git a/tests/test_stage.py b/tests/test_stage.py
index 1f49428..ec342a0 100644
--- a/tests/test_stage.py
+++ b/tests/test_stage.py
@@ -156,11 +156,8 @@ def run(self):
     class AbstractStage(PipelineStage):
         name="AbstractStage"
         config_options = None
-        inputs = []
-        outputs = []
 
-    abstract_stage = AbstractStage.make_stage()
-    abstract_stage.describe_configuration()
+    AbstractStage.describe_configuration()
 
 
     # This one should not work