diff --git a/api/onnx_web/chain/upscale_outpaint.py b/api/onnx_web/chain/upscale_outpaint.py
index 77c14c9d..8c7e8896 100644
--- a/api/onnx_web/chain/upscale_outpaint.py
+++ b/api/onnx_web/chain/upscale_outpaint.py
@@ -72,6 +72,7 @@ def upscale_outpaint(
             params.model,
             params.scheduler,
             job.get_device(),
+            params.lpw,
         )
         if params.lpw:
             rng = torch.manual_seed(params.seed)