diff --git a/src/scportrait/tools/stitch/_stitch.py b/src/scportrait/tools/stitch/_stitch.py
index 00efc14..e1020d6 100644
--- a/src/scportrait/tools/stitch/_stitch.py
+++ b/src/scportrait/tools/stitch/_stitch.py
@@ -23,6 +23,7 @@
 from scportrait.tools.stitch._utils.ashlar_plotting import plot_edge_quality, plot_edge_scatter
 from scportrait.tools.stitch._utils.filewriters import write_ome_zarr, write_spatialdata, write_tif, write_xml
 
+
 class Stitcher:
     """
     Class for stitching of image tiles to assemble a mosaic.