diff --git a/sdxl_utility.py b/sdxl_utility.py
index ffa2fb7..4b31843 100644
--- a/sdxl_utility.py
+++ b/sdxl_utility.py
@@ -56,10 +56,6 @@ class PromptGenerator:
     def __init__(self, seed=None):
         self.rng = random.Random(seed)
 
-    @classmethod
-    def IS_CHANGED(cls):
-        return float("NaN")
-
     @classmethod
     def INPUT_TYPES(cls):
         return {