diff --git a/pydra/engine/tests/test_submitter.py b/pydra/engine/tests/test_submitter.py
index 7098f66880..298e7e74b4 100644
--- a/pydra/engine/tests/test_submitter.py
+++ b/pydra/engine/tests/test_submitter.py
@@ -669,6 +669,7 @@ def to_tuple(x, y):
         with Submitter("cf") as sub:
             result = sub(wf)
 
+
 @mark.task
 def to_tuple(x, y):
     return (x, y)