diff --git a/dalle2_pytorch/dalle2_pytorch.py b/dalle2_pytorch/dalle2_pytorch.py
index 730b99b..b157a3e 100644
--- a/dalle2_pytorch/dalle2_pytorch.py
+++ b/dalle2_pytorch/dalle2_pytorch.py
@@ -1117,7 +1117,7 @@ class Decoder(nn.Module):
         unet,
         *,
         clip,
-        vae = None,
+        vae = tuple(),
         timesteps = 1000,
         cond_drop_prob = 0.2,
         loss_type = 'l1',
diff --git a/setup.py b/setup.py
index eb3853f..010e08c 100644
--- a/setup.py
+++ b/setup.py
@@ -10,7 +10,7 @@ setup(
       'dream = dalle2_pytorch.cli:dream'
     ],
   },
-  version = '0.0.45',
+  version = '0.0.46',
   license='MIT',
   description = 'DALL-E 2',
   author = 'Phil Wang',