diff --git a/sbb_newspapers_org_image/eynollah.py b/sbb_newspapers_org_image/eynollah.py
index 4bd0c56..9bb95c9 100644
--- a/sbb_newspapers_org_image/eynollah.py
+++ b/sbb_newspapers_org_image/eynollah.py
@@ -709,7 +709,7 @@ class Eynollah:
 
     def get_slopes_and_deskew_new(self, contours, contours_par, textline_mask_tot, image_page_rotated, boxes, slope_deskew):
         self.logger.debug("enter get_slopes_and_deskew_new")
-        num_cores = 1#cpu_count()
+        num_cores = cpu_count()
         queue_of_all_params = Queue()
 
         processes = []