diff --git a/clip/model.py b/clip/model.py
index 232b779..e71bbc2 100644
--- a/clip/model.py
+++ b/clip/model.py
@@ -159,7 +159,7 @@ class LayerNorm(nn.LayerNorm):
 
     def forward(self, x: torch.Tensor):
         orig_type = x.dtype
-        ret = super().forward(x.type(torch.float32))
+        ret = super(LayerNorm).forward(x.type(torch.float32))
         return ret.type(orig_type)