diff --git a/comfy/hooks.py b/comfy/hooks.py
index 79a7090b..3cb0f396 100644
--- a/comfy/hooks.py
+++ b/comfy/hooks.py
@@ -442,7 +442,7 @@ class HookKeyframeGroup:
             return False
         if curr_t == self._curr_t:
             return False
-        max_sigma = torch.max(transformer_options["sigmas"])
+        max_sigma = torch.max(transformer_options["sample_sigmas"])
         prev_index = self._current_index
         prev_strength = self._current_strength
         # if met guaranteed steps, look for next keyframe in case need to switch
diff --git a/comfy/samplers.py b/comfy/samplers.py
index 89464a42..af2b8e11 100644
--- a/comfy/samplers.py
+++ b/comfy/samplers.py
@@ -849,7 +849,7 @@ class CFGGuider:
         self.conds = process_conds(self.inner_model, noise, self.conds, device, latent_image, denoise_mask, seed)
 
         extra_model_options = comfy.model_patcher.create_model_options_clone(self.model_options)
-        extra_model_options.setdefault("transformer_options", {})["sigmas"] = sigmas
+        extra_model_options.setdefault("transformer_options", {})["sample_sigmas"] = sigmas
         extra_args = {"model_options": extra_model_options, "seed": seed}
 
         executor = comfy.patcher_extension.WrapperExecutor.new_class_executor(