diff --git a/execution.py b/execution.py
index 76225a96..8b3d116c 100644
--- a/execution.py
+++ b/execution.py
@@ -247,6 +247,8 @@ def recursive_output_delete_if_changed(prompt, old_prompt, outputs, current_item
             to_delete = True
         elif unique_id not in old_prompt:
             to_delete = True
+        elif class_type != old_prompt[unique_id]['class_type']:
+            to_delete = True
         elif inputs == old_prompt[unique_id]['inputs']:
             for x in inputs:
                 input_data = inputs[x]