diff --git a/fish_speech/models/vqgan/modules/firefly.py b/fish_speech/models/vqgan/modules/firefly.py
index 52e448f6..4bfa7cac 100644
--- a/fish_speech/models/vqgan/modules/firefly.py
+++ b/fish_speech/models/vqgan/modules/firefly.py
@@ -500,7 +500,7 @@ def __init__(self, ckpt_path: str = None, pretrained: bool = True):
         )
 
         if ckpt_path is not None:
-            self.load_state_dict(torch.load(ckpt_path, map_location="cpu"))
+            state_dict = torch.load(ckpt_path, map_location="cpu")
         elif pretrained:
             state_dict = torch.hub.load_state_dict_from_url(
                 "https://github.com/fishaudio/vocoder/releases/download/1.0.0/firefly-gan-base-generator.ckpt",