diff --git a/adetailer/ui.py b/adetailer/ui.py
index 9c74a42..e49ea5e 100644
--- a/adetailer/ui.py
+++ b/adetailer/ui.py
@@ -25,6 +25,7 @@ cn_module_choices = {
     ],
     "openpose": ["openpose_full", "dw_openpose_full"],
     "tile": ["tile_resample", "tile_colorfix", "tile_colorfix+sharp"],
+    "scribble": ["t2ia_sketch_pidi"],
 }
 
 
diff --git a/controlnet_ext/controlnet_ext.py b/controlnet_ext/controlnet_ext.py
index 5a39b30..6f70949 100644
--- a/controlnet_ext/controlnet_ext.py
+++ b/controlnet_ext/controlnet_ext.py
@@ -65,6 +65,8 @@ class ControlNetExt:
                 if m in model:
                     module = v
                     break
+            else:
+                module = None
 
         cn_units = [
             self.external_cn.ControlNetUnit(