diff --git a/modules/processing.py b/modules/processing.py
index cbb71db8..775b0e57 100644
--- a/modules/processing.py
+++ b/modules/processing.py
@@ -225,8 +225,6 @@ class StableDiffusionProcessing:
 
     is_api: bool = field(default=False, init=False)
 
-    extra_result_images = []
-
     def __post_init__(self):
         if self.sampler_index is not None:
             print("sampler_index argument for StableDiffusionProcessing does not do anything; use sampler_name", file=sys.stderr)
@@ -258,6 +256,8 @@ class StableDiffusionProcessing:
         self.cached_uc = StableDiffusionProcessing.cached_uc
         self.cached_c = StableDiffusionProcessing.cached_c
 
+        self.extra_result_images = []
+
     @property
     def sd_model(self):
         return shared.sd_model