diff --git a/bob/pad/face/preprocessor/FaceCropAlign.py b/bob/pad/face/preprocessor/FaceCropAlign.py
index f22a11dd48b8b49d2588688000bda4cfc8f5f46d..acbd819b8b6bf650b082511ef7fa1e7ad4fc98f3 100644
--- a/bob/pad/face/preprocessor/FaceCropAlign.py
+++ b/bob/pad/face/preprocessor/FaceCropAlign.py
@@ -461,7 +461,7 @@ class FaceCropAlign(Preprocessor):
                 np.array(annotations['bottomright']) -
                 np.array(annotations['topleft']))
 
-            if original_face_size >= self.min_face_size:  # check if face size is above the threshold
+            if original_face_size < self.min_face_size:  # check if face size is above the threshold
 
                 return None