diff --git a/library/train_util.py b/library/train_util.py
index fb1a37cd..7b553363 100644
--- a/library/train_util.py
+++ b/library/train_util.py
@@ -1885,7 +1885,7 @@ def add_optimizer_arguments(parser: argparse.ArgumentParser):
         "--optimizer_type",
         type=str,
         default="",
-        help="Optimizer to use / オプティマイザの種類: AdamW (default), AdamW8bit, Lion, SGDNesterov, SGDNesterov8bit, DAdaptation(DAdaptAdam), DAdaptAdaGrad, DAdaptAdan, DAdaptSGD, AdaFactor",
+        help="Optimizer to use / オプティマイザの種類: AdamW (default), AdamW8bit, Lion8bit, Lion, SGDNesterov, SGDNesterov8bit, DAdaptation(DAdaptAdam), DAdaptAdaGrad, DAdaptAdan, DAdaptSGD, AdaFactor",
     )
 
     # backward compatibility
@@ -2467,7 +2467,7 @@ def resume_from_local_or_hf_if_specified(accelerator, args):
 
 
 def get_optimizer(args, trainable_params):
-    # "Optimizer to use: AdamW, AdamW8bit, Lion, SGDNesterov, SGDNesterov8bit, DAdaptation, DAdaptation(DAdaptAdam), DAdaptAdaGrad, DAdaptAdan, DAdaptSGD, Adafactor"
+    # "Optimizer to use: AdamW, AdamW8bit, Lion, SGDNesterov, SGDNesterov8bit, Lion8bit, DAdaptation, DAdaptation(DAdaptAdam), DAdaptAdaGrad, DAdaptAdan, DAdaptSGD, Adafactor"
 
     optimizer_type = args.optimizer_type
     if args.use_8bit_adam: