diff --git a/src/roiextractors/segmentationextractor.py b/src/roiextractors/segmentationextractor.py
index 06c17993..7694f478 100644
--- a/src/roiextractors/segmentationextractor.py
+++ b/src/roiextractors/segmentationextractor.py
@@ -558,4 +558,4 @@ def get_roi_pixel_masks(self, roi_ids: Optional[ArrayLike] = None) -> List[np.nd
         return self._parent_segmentation.get_roi_pixel_masks(roi_ids=roi_ids)
 
     def get_background_pixel_masks(self, background_ids: Optional[ArrayLike] = None) -> List[np.ndarray]:
-        return self._parent_segmentation.get_background_pixel_masks(background_ids=background_ids)
\ No newline at end of file
+        return self._parent_segmentation.get_background_pixel_masks(background_ids=background_ids)