diff --git a/bob/bio/face/config/preprocessor/face_crop_eyes.py b/bob/bio/face/config/preprocessor/face_crop_eyes.py
index 2421aaac256dd5eefe37f5b24b5d1a9afdd47186..a2a2ecb32b37a60f96cbba53149cb28b6ef5c992 100644
--- a/bob/bio/face/config/preprocessor/face_crop_eyes.py
+++ b/bob/bio/face/config/preprocessor/face_crop_eyes.py
@@ -4,11 +4,11 @@ import bob.bio.face
 
 # Cropping
 CROPPED_IMAGE_HEIGHT = 80
-CROPPED_IMAGE_WIDTH  = CROPPED_IMAGE_HEIGHT * 4 / 5
+CROPPED_IMAGE_WIDTH  = CROPPED_IMAGE_HEIGHT * 4 // 5
 
 # eye positions for frontal images
-RIGHT_EYE_POS = (CROPPED_IMAGE_HEIGHT / 5, CROPPED_IMAGE_WIDTH / 4 - 1)
-LEFT_EYE_POS  = (CROPPED_IMAGE_HEIGHT / 5, CROPPED_IMAGE_WIDTH / 4 * 3)
+RIGHT_EYE_POS = (CROPPED_IMAGE_HEIGHT // 5, CROPPED_IMAGE_WIDTH // 4 - 1)
+LEFT_EYE_POS  = (CROPPED_IMAGE_HEIGHT // 5, CROPPED_IMAGE_WIDTH // 4 * 3)
 
 # define the preprocessor
 preprocessor = bob.bio.face.preprocessor.FaceCrop(