diff --git a/models/layers/layers.py b/models/layers/layers.py
index f43b86e272..6e2680759f 100644
--- a/models/layers/layers.py
+++ b/models/layers/layers.py
@@ -4,7 +4,6 @@
 import keras
 
 from keras.layers import Layer, InputSpec
-import keras.backend as K
 
 class ReflectionPadding2D(Layer):
     def __init__(self, padding=(1, 1), **kwargs):