diff --git a/back-end/pyworkflow/pyworkflow/tests/test_workflow.py b/back-end/pyworkflow/pyworkflow/tests/test_workflow.py
index a754913..8ecffa7 100644
--- a/back-end/pyworkflow/pyworkflow/tests/test_workflow.py
+++ b/back-end/pyworkflow/pyworkflow/tests/test_workflow.py
@@ -33,7 +33,7 @@ def test_workflow_name(self):
 
     def test_workflow_dir_os_error(self):
         try:
-            # os.makedirs("foobar", 0000)
+            os.makedirs("foobar", 0000)
             test_workflow = Workflow(node_dir="foobar")
         except WorkflowException as e:
             self.assertEqual(e.action, "init workflow")