diff --git a/timm/models/cspnet.py b/timm/models/cspnet.py
index ca9eaf16..afd1dcd7 100644
--- a/timm/models/cspnet.py
+++ b/timm/models/cspnet.py
@@ -264,9 +264,11 @@ class CrossStage(nn.Module):
         if self.conv_down is not None:
             x = self.conv_down(x)
         x = self.conv_exp(x)
-        xs, xb = x.chunk(2, dim=1)
+        split = x.shape[1] // 2
+        xs, xb = x[:, :split], x[:, split:]
         xb = self.blocks(xb)
-        out = self.conv_transition(torch.cat([xs, self.conv_transition_b(xb)], dim=1))
+        xb = self.conv_transition_b(xb).contiguous()
+        out = self.conv_transition(torch.cat([xs, xb], dim=1))
         return out