diff --git a/tensorlayer/models/vgg.py b/tensorlayer/models/vgg.py
index 89f81931d..7c4bf201e 100644
--- a/tensorlayer/models/vgg.py
+++ b/tensorlayer/models/vgg.py
@@ -317,6 +317,7 @@ def vgg19(pretrained=False, end_with='outputs', mode='dynamic', name=None):
         restore_model(model, layer_type='vgg19')
     return model
 
+
 VGG16 = vgg16
 VGG19 = vgg19