diff --git a/setup.py b/setup.py
index 9d44ad1..b0a6cc1 100644
--- a/setup.py
+++ b/setup.py
@@ -4,7 +4,7 @@
   name = 'x-clip',
   packages = find_packages(exclude=[]),
   include_package_data = True,
-  version = '0.4.5',
+  version = '0.4.6',
   license='MIT',
   description = 'X-CLIP',
   author = 'Phil Wang',
diff --git a/x_clip/visual_ssl.py b/x_clip/visual_ssl.py
index c836446..eb5aec3 100644
--- a/x_clip/visual_ssl.py
+++ b/x_clip/visual_ssl.py
@@ -134,7 +134,7 @@ def SimSiamMLP(dim, projection_size, hidden_size = 4096):
 # and pipe it into the projecter and predictor nets
 
 class NetWrapper(nn.Module):
-    def __init__(self, net, projection_size, projection_hidden_size = None, layer = -2):
+    def __init__(self, net, projection_size, projection_hidden_size = 4096, layer = -2):
         super().__init__()
         self.net = net
         self.layer = layer