diff --git a/library/sdxl_train_util.py b/library/sdxl_train_util.py
index f78d9424..5176b536 100644
--- a/library/sdxl_train_util.py
+++ b/library/sdxl_train_util.py
@@ -84,7 +84,7 @@ def _load_target_model(
         # Diffusers model is loaded to CPU
         from diffusers import StableDiffusionXLPipeline
 
-        variant = "fp16" if weight_dtype == torch.float16 else None
+        variant = "fp16" if weight_dtype == torch.float16 else "bf16" if weight_dtype == torch.bfloat16 else None
         logger.info(f"load Diffusers pretrained models: {name_or_path}, variant={variant}")
         try:
             try: