diff --git a/ctapipe/instrument/camera/__init__.py b/ctapipe/instrument/camera/__init__.py
index c87b09a7ef9..43a0644f6f9 100644
--- a/ctapipe/instrument/camera/__init__.py
+++ b/ctapipe/instrument/camera/__init__.py
@@ -1,5 +1,5 @@
 from .description import CameraDescription  # noqa: F401
-from .geometry import CameraGeometry, UnknownPixelShapeWarning, PixelShape  # noqa: F401
+from .geometry import CameraGeometry, PixelShape, UnknownPixelShapeWarning  # noqa: F401
 from .readout import CameraReadout  # noqa: F401
 
 # __all__ = [