From c63d474b6090b5c78cf1a28f39589e3f5652bf26 Mon Sep 17 00:00:00 2001
From: Artiprocher <wangye87v5@hotmail.com>
Date: Tue, 30 Sep 2025 12:59:44 +0800
Subject: [PATCH] fix bug in issue 953

---
 diffsynth/vram_management/layers.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/diffsynth/vram_management/layers.py b/diffsynth/vram_management/layers.py
index c6f1ec6..3e15442 100644
--- a/diffsynth/vram_management/layers.py
+++ b/diffsynth/vram_management/layers.py
@@ -116,7 +116,7 @@ class AutoWrappedLinear(torch.nn.Linear, AutoTorchModule):
         self,
         input: torch.Tensor,
         weight: torch.Tensor,
-        bias: torch.Tensor | None = None,
+        bias: torch.Tensor = None,
     ) -> torch.Tensor:
         device = input.device
         origin_dtype = input.dtype