diff --git a/timm/models/nest.py b/timm/models/nest.py
index 601b6104..191d15c7 100644
--- a/timm/models/nest.py
+++ b/timm/models/nest.py
@@ -329,7 +329,6 @@ class Nest(nn.Module):
     def forward_features(self, x):
         """ x shape (B, C, H, W)
         """
-        B, _, H, W = x.shape
         x = self.patch_embed(x)
         x = self.levels(x)
         # Layer norm done over channel dim only (to NHWC and back)