diff --git a/python/sglang/srt/layers/elementwise.py b/python/sglang/srt/layers/elementwise.py
index e05d88b32..899518034 100644
--- a/python/sglang/srt/layers/elementwise.py
+++ b/python/sglang/srt/layers/elementwise.py
@@ -187,7 +187,9 @@ fused_dual_residual_rmsnorm_kernel_autotune = rmsnorm_autotune(
 
 def fused_dual_residual_rmsnorm(x, residual, weight1, weight2, eps, autotune=False):
     assert len(x.shape) == 2
-    assert x.shape == residual.shape and x.dtype == residual.dtype
+    assert (
+        x.shape == residual.shape and x.dtype == residual.dtype
+    ), f"{x.shape=} {residual.shape=} {x.dtype=} {residual.dtype=}"
     output, mid = torch.empty_like(x), torch.empty_like(x)
     bs, hidden_dim = x.shape
     if autotune: