diff --git a/python/sglang/srt/layers/quantization/mxfp4.py b/python/sglang/srt/layers/quantization/mxfp4.py
index 64a50e433..245751022 100644
--- a/python/sglang/srt/layers/quantization/mxfp4.py
+++ b/python/sglang/srt/layers/quantization/mxfp4.py
@@ -565,10 +565,16 @@ class Mxfp4MoEMethod(FusedMoEMethodBase):
             from triton_kernels.numerics_details.mxfp import upcast_from_mxfp
 
             w13_weight = upcast_from_mxfp(
-                layer.w13_weight, layer.w13_weight_scale, dtype=torch.bfloat16, axis=-1
+                layer.w13_weight,
+                layer.w13_weight_scale,
+                target_dtype=torch.bfloat16,
+                axis=-1,
             )
             w2_weight = upcast_from_mxfp(
-                layer.w2_weight, layer.w2_weight_scale, dtype=torch.bfloat16, axis=-1
+                layer.w2_weight,
+                layer.w2_weight_scale,
+                target_dtype=torch.bfloat16,
+                axis=-1,
             )
             del layer.w13_weight
             del layer.w2_weight