diff --git a/codes/models/SRGAN_model.py b/codes/models/SRGAN_model.py
index cce3f8be..73cdb27d 100644
--- a/codes/models/SRGAN_model.py
+++ b/codes/models/SRGAN_model.py
@@ -364,7 +364,7 @@ class SRGANModel(BaseModel):
 
                 l_g_fix_disc = torch.zeros(1, requires_grad=False).squeeze()
                 for fixed_disc in self.fixed_disc_nets:
-                    weight = fixed_disc.fdisc_weight
+                    weight = fixed_disc.module.fdisc_weight
                     real_fea = fixed_disc(pix).detach()
                     fake_fea = fixed_disc(fea_GenOut)
                     l_g_fix_disc += weight * self.cri_fea(fake_fea, real_fea)