diff --git a/codes/models/SRGAN_model.py b/codes/models/SRGAN_model.py
index 7e6d136f..786181e4 100644
--- a/codes/models/SRGAN_model.py
+++ b/codes/models/SRGAN_model.py
@@ -110,7 +110,7 @@ class SRGANModel(BaseModel):
             self.fixed_disc_nets = []
             if 'fixed_discriminators' in opt.keys():
                 for opt_fdisc in opt['fixed_discriminators'].keys():
-                    self.fixed_disc_nets.append(networks.define_fixed_D(opt['fixed_discriminator'][opt_fdisc]).to(self.device))
+                    self.fixed_disc_nets.append(networks.define_fixed_D(opt['fixed_discriminators'][opt_fdisc]).to(self.device))
 
             # GD gan loss
             self.cri_gan = GANLoss(train_opt['gan_type'], 1.0, 0.0).to(self.device)
@@ -568,6 +568,7 @@ class SRGANModel(BaseModel):
             if self.cri_fea and l_g_fea_log is not None:
                 self.add_log_entry('feature_weight', fea_w)
                 self.add_log_entry('l_g_fea', l_g_fea_log.item())
+                self.add_log_entry('l_g_fix_disc', l_g_fix_disc.item())
             if self.l_gan_w > 0:
                 self.add_log_entry('l_g_gan', l_g_gan_log.item())
             self.add_log_entry('l_g_total', l_g_total_log.item())
diff --git a/codes/models/networks.py b/codes/models/networks.py
index 649436b3..f8df741b 100644
--- a/codes/models/networks.py
+++ b/codes/models/networks.py
@@ -164,6 +164,8 @@ def define_fixed_D(opt):
         v.requires_grad = False
     net.fdisc_weight = opt['weight']
 
+    return net
+
 
 # Define network used for perceptual loss
 def define_F(opt, use_bn=False, for_training=False):