diff --git a/models.py b/models.py
index 0457965..deb2338 100644
--- a/models.py
+++ b/models.py
@@ -790,6 +790,7 @@ class WindowAttention(nn.Module):
         B_, C, N, _ = x.shape
         x = x.reshape(B_, C, N * N)
         B_, C, N = x.shape
+        x = x.reshape(B_, N, C)
         qkv_bias = None
         if self.q_bias is not None:
             qkv_bias = torch.cat((self.q_bias, torch.zeros_like(self.v_bias, requires_grad=False), self.v_bias))