diff --git a/qurator/sbb_textline_detector/main.py b/qurator/sbb_textline_detector/main.py
index a73c537..5595cdd 100644
--- a/qurator/sbb_textline_detector/main.py
+++ b/qurator/sbb_textline_detector/main.py
@@ -194,7 +194,7 @@ class textline_detector:
         self.height_org = self.image.shape[0]
         self.width_org = self.image.shape[1]
 
-        if self.image.shape[0] < 1000:
+        if self.image.shape[0] < 2500:
             self.img_hight_int = 2800
             self.img_width_int = int(self.img_hight_int * self.image.shape[1] / float(self.image.shape[0]))