diff --git a/modules/processing.py b/modules/processing.py
index e124e7f0d..061d9955a 100644
--- a/modules/processing.py
+++ b/modules/processing.py
@@ -142,7 +142,7 @@ class StableDiffusionProcessing:
     overlay_images: list = None
     eta: float = None
     do_not_reload_embeddings: bool = False
-    denoising_strength: float = 0
+    denoising_strength: float = None
     ddim_discretize: str = None
     s_min_uncond: float = None
     s_churn: float = None