diff --git a/controlnet_ext/controlnet_ext_forge.py b/controlnet_ext/controlnet_ext_forge.py
index e1ac6ed..f829182 100644
--- a/controlnet_ext/controlnet_ext_forge.py
+++ b/controlnet_ext/controlnet_ext_forge.py
@@ -58,8 +58,7 @@ class ControlNetExt:
             return
 
         image = np.asarray(p.init_images[0])
-        mask = np.zeros_like(image)
-        mask[:] = 255
+        mask = np.full_like(image, fill_value=255)
 
         cnet_image = {"image": image, "mask": mask}