diff --git a/modules/processing.py b/modules/processing.py
index 86d015af..db35983b 100644
--- a/modules/processing.py
+++ b/modules/processing.py
@@ -422,14 +422,14 @@ def process_images(p: StableDiffusionProcessing) -> Processed:
 
     try:
         for k, v in p.override_settings.items():
-            opts.data[k] = v  # we don't call onchange for simplicity which makes changing model impossible
+            setattr(opts, k, v)  # we don't call onchange for simplicity which makes changing model impossible
             if k == 'sd_hypernetwork': shared.reload_hypernetworks()  # make onchange call for changing hypernet since it is relatively fast to load on-change, while SD models are not
 
         res = process_images_inner(p)
 
     finally:  # restore opts to original state
         for k, v in stored_opts.items():
-            opts.data[k] = v
+            setattr(opts, k, v)
             if k == 'sd_hypernetwork': shared.reload_hypernetworks()
 
     return res