diff --git a/src/aare/daq/daq.py b/src/aare/daq/daq.py
index e4c24493..b7a792a1 100644
--- a/src/aare/daq/daq.py
+++ b/src/aare/daq/daq.py
@@ -1276,7 +1276,9 @@ class AareDAQ:
             CompletedRasterGrid result or None if failed
         """
         if self.sample is None:
-            raise RasterScanException("Please load a sample before running a raster scan. If you have manually mounted a sample, create its record in the 'Manual sample' panel.")
+            raise RasterScanException(
+                "Please load a sample before running a raster scan. If you have manually mounted a sample, create its record in the 'Manual sample' panel."
+            )
         try:
             logger.info(
                 "Starting raster sequence",
diff --git a/src/aare/daq/operations/raster/service.py b/src/aare/daq/operations/raster/service.py
index 4ff4fecf..62ebba26 100644
--- a/src/aare/daq/operations/raster/service.py
+++ b/src/aare/daq/operations/raster/service.py
@@ -521,7 +521,9 @@ class RasterService:
                 )
                 raise RasterScanException("JFJoch returned no ScanResult for raster")
             else:
-                truncated_images = scan_result.images[:3] if len(scan_result.images) > 3 else scan_result.images
+                truncated_images = (
+                    scan_result.images[:3] if len(scan_result.images) > 3 else scan_result.images
+                )
                 self.logger.debug(
                     f"Raster scan results from JFJoch: file {scan_result.file_prefix} with images {truncated_images} ..."
                 )