diff --git a/comfy/ldm/wan/model_multitalk.py b/comfy/ldm/wan/model_multitalk.py
index a67fb5158..c9dd98c4d 100644
--- a/comfy/ldm/wan/model_multitalk.py
+++ b/comfy/ldm/wan/model_multitalk.py
@@ -436,7 +436,7 @@ class MultiTalkCrossAttnPatch:
 
     def __call__(self, kwargs):
         transformer_options = kwargs.get("transformer_options", {})
-        block_idx = transformer_options.get("block_idx", None)
+        block_idx = transformer_options.get("block_index", None)
         x = kwargs["x"]
         if block_idx is None:
             return torch.zeros_like(x)