diff --git a/src/pytest_celery/api/base.py b/src/pytest_celery/api/base.py
index 542e954e..6f5ca83f 100644
--- a/src/pytest_celery/api/base.py
+++ b/src/pytest_celery/api/base.py
@@ -236,12 +236,14 @@ def _set_nodes(
             tuple[CeleryTestNode]: Nodes to use for the cluster.
         """
         return tuple(
-            node_cls(node)
-            if isinstance(
-                node,
-                CeleryTestContainer,
+            (
+                node_cls(node)
+                if isinstance(
+                    node,
+                    CeleryTestContainer,
+                )
+                else node
             )
-            else node
             for node in nodes
         )  # type: ignore
 
diff --git a/src/pytest_celery/vendors/worker/content/app.py b/src/pytest_celery/vendors/worker/content/app.py
index 0cf8203d..f7ee2179 100644
--- a/src/pytest_celery/vendors/worker/content/app.py
+++ b/src/pytest_celery/vendors/worker/content/app.py
@@ -1,4 +1,5 @@
 """Template for Celery worker application."""
+
 from __future__ import annotations
 
 import json