diff --git a/preprocessing.py b/preprocessing.py
index a66453102..50db682bf 100644
--- a/preprocessing.py
+++ b/preprocessing.py
@@ -278,7 +278,7 @@ def aug_image(self, train_instance, jitter):
             image = self.aug_pipe.augment_image(image)            
             
         # resize the image to standard size
-        image = cv2.resize(image, (self.config['IMAGE_H'], self.config['IMAGE_W']))
+        image = cv2.resize(image, (self.config['IMAGE_W'], self.config['IMAGE_H']))
         image = image[:,:,::-1]
 
         # fix object's position and size