diff --git a/modules/sd_hijack_inpainting.py b/modules/sd_hijack_inpainting.py
index 478cd499..55a2ce4d 100644
--- a/modules/sd_hijack_inpainting.py
+++ b/modules/sd_hijack_inpainting.py
@@ -11,6 +11,7 @@ import ldm.models.diffusion.plms
 from ldm.models.diffusion.ddpm import LatentDiffusion
 from ldm.models.diffusion.plms import PLMSSampler
 from ldm.models.diffusion.ddim import DDIMSampler, noise_like
+from ldm.models.diffusion.sampling_util import norm_thresholding
 
 
 @torch.no_grad()