diff --git a/comfy/ops.py b/comfy/ops.py
index 5e7c668eb03..3c5ba0124b5 100644
--- a/comfy/ops.py
+++ b/comfy/ops.py
@@ -264,10 +264,14 @@ def fp8_linear(self, input):
         scale_input = self.scale_input
         if scale_weight is None:
             scale_weight = torch.ones((), device=input.device, dtype=torch.float32)
+        else:
+            scale_weight = scale_weight.to(input.device)
+
         if scale_input is None:
             scale_input = torch.ones((), device=input.device, dtype=torch.float32)
             inn = input.reshape(-1, input.shape[2]).to(dtype)
         else:
+            scale_input = scale_input.to(input.device)
             inn = (input * (1.0 / scale_input).to(input.dtype)).reshape(-1, input.shape[2]).to(dtype)
 
         if bias is not None: