diff --git a/happypose/toolbox/renderer/panda3d_batch_renderer.py b/happypose/toolbox/renderer/panda3d_batch_renderer.py
index 1bd9a98f..c1ece131 100644
--- a/happypose/toolbox/renderer/panda3d_batch_renderer.py
+++ b/happypose/toolbox/renderer/panda3d_batch_renderer.py
@@ -115,9 +115,9 @@ def worker_loop(
             rgb=renderings_.rgb,
             normals=renderings_.normals if render_args.render_normals else None,
             depth=renderings_.depth if render_args.render_depth else None,
-            binary_mask=renderings_.binary_mask
-            if render_args.render_binary_mask
-            else None,
+            binary_mask=(
+                renderings_.binary_mask if render_args.render_binary_mask else None
+            ),
         )
         del render_args
         out_queue.put(output)
diff --git a/tests/test_renderer_bullet.py b/tests/test_renderer_bullet.py
index a0285471..efb02d7c 100644
--- a/tests/test_renderer_bullet.py
+++ b/tests/test_renderer_bullet.py
@@ -1,4 +1,5 @@
 """Set of unit tests for bullet renderer."""
+
 import unittest
 from pathlib import Path