diff --git a/networks/lora_flux.py b/networks/lora_flux.py
index d540c221..dd267de0 100644
--- a/networks/lora_flux.py
+++ b/networks/lora_flux.py
@@ -788,8 +788,11 @@ class LoRANetwork(torch.nn.Module):
 
     def prepare_optimizer_params_with_multiple_te_lrs(self, text_encoder_lr, unet_lr, default_lr):
         # make sure text_encoder_lr as list of two elements
-        if text_encoder_lr is None or len(text_encoder_lr) == 0:
+        # if float, use the same value for both text encoders
+        if text_encoder_lr is None or (isinstance(text_encoder_lr, list) and len(text_encoder_lr) == 0):
             text_encoder_lr = [default_lr, default_lr]
+        elif isinstance(text_encoder_lr, float):
+            text_encoder_lr = [text_encoder_lr, text_encoder_lr]
         elif len(text_encoder_lr) == 1:
             text_encoder_lr = [text_encoder_lr[0], text_encoder_lr[0]]