diff --git a/sbb_binarize/ocrd_cli.py b/sbb_binarize/ocrd_cli.py
index 44a001f..45c9fee 100644
--- a/sbb_binarize/ocrd_cli.py
+++ b/sbb_binarize/ocrd_cli.py
@@ -124,7 +124,7 @@ class SbbBinarizeProcessor(Processor):
                     LOG.warning("Page '%s' contains no text/table regions", page_id)
                 for region in regions:
                     region_image, region_xywh = self.workspace.image_from_segment(region, page_image, page_xywh, feature_filter='binarized')
-                    region_image_bin = cv2pil(binarizer.run(image=pil2cv(region_image)))
+                    region_image_bin = cv2pil(self.binarizer.run(image=pil2cv(region_image)))
                     region_image_bin_path = self.workspace.save_image_file(
                             region_image_bin,
                             "%s_%s.IMG-BIN" % (file_id, region.id),
@@ -139,7 +139,7 @@ class SbbBinarizeProcessor(Processor):
                     LOG.warning("Page '%s' contains no text lines", page_id)
                 for region_id, line in region_line_tuples:
                     line_image, line_xywh = self.workspace.image_from_segment(line, page_image, page_xywh, feature_filter='binarized')
-                    line_image_bin = cv2pil(binarizer.run(image=pil2cv(line_image)))
+                    line_image_bin = cv2pil(self.binarizer.run(image=pil2cv(line_image)))
                     line_image_bin_path = self.workspace.save_image_file(
                             line_image_bin,
                             "%s_%s_%s.IMG-BIN" % (file_id, region_id, line.id),