diff --git a/extensions-builtin/LDSR/sd_hijack_ddpm_v1.py b/extensions-builtin/LDSR/sd_hijack_ddpm_v1.py
index cd54ab4b1..7944fb13c 100644
--- a/extensions-builtin/LDSR/sd_hijack_ddpm_v1.py
+++ b/extensions-builtin/LDSR/sd_hijack_ddpm_v1.py
@@ -16,8 +16,7 @@ from contextlib import contextmanager
 from functools import partial
 from tqdm import tqdm
 from torchvision.utils import make_grid
-sys.modules['pytorch_lightning.utilities.distributed'] = sys.modules['pytorch_lightning.utilities.rank_zero']
-from pytorch_lightning.utilities.rank_zero import rank_zero_only
+from pytorch_lightning.utilities.distributed import rank_zero_only
 
 from ldm.util import log_txt_as_img, exists, default, ismap, isimage, mean_flat, count_params, instantiate_from_config
 from ldm.modules.ema import LitEma