diff --git a/fast_neural_style/neural_style/utils.py b/fast_neural_style/neural_style/utils.py
index d86b243440..525c25148c 100644
--- a/fast_neural_style/neural_style/utils.py
+++ b/fast_neural_style/neural_style/utils.py
@@ -39,5 +39,5 @@ def normalize_batch(batch):
     std[:, 2, :, :] = 0.225
     batch = torch.div(batch, 255.0)
     batch -= Variable(mean)
-    batch /= Variable(std)
+    batch = batch / Variable(std)
     return batch