diff --git a/IPAdapterPlus.py b/IPAdapterPlus.py
index ea8d19b..3dd17f4 100644
--- a/IPAdapterPlus.py
+++ b/IPAdapterPlus.py
@@ -454,7 +454,8 @@ class CrossAttentionPatch:
     def __call__(self, n, context_attn2, value_attn2, extra_options):
         org_dtype = n.dtype
         cond_or_uncond = extra_options["cond_or_uncond"]
-        sigma = extra_options["sigmas"][0].item() if 'sigmas' in extra_options else 999999999.9
+        sigma = extra_options["sigmas"][0] if 'sigmas' in extra_options else None
+        sigma = sigma.item() if sigma is not None else 999999999.9
 
         # extra options for AnimateDiff
         ad_params = extra_options['ad_params'] if "ad_params" in extra_options else None