diff --git a/client/cros/chameleon/screen_utility_factory.py b/client/cros/chameleon/screen_utility_factory.py
index 5e93fd5..eb98a20 100644
--- a/client/cros/chameleon/screen_utility_factory.py
+++ b/client/cros/chameleon/screen_utility_factory.py
@@ -18,7 +18,7 @@
     """
 
     _PIXEL_DIFF_MARGIN_FOR_ANALOG = 30
-    _PIXEL_DIFF_MARGIN_FOR_DIGITAL = 1
+    _PIXEL_DIFF_MARGIN_FOR_DIGITAL = 2
 
     _WRONG_PIXELS_MARGIN_FOR_ANALOG = 0.04  # 4%
     _WRONG_PIXELS_MARGIN_FOR_DIGITAL = 0