diff --git a/diffsynth/pipelines/base.py b/diffsynth/pipelines/base.py
index f8f7178..b968bb6 100644
--- a/diffsynth/pipelines/base.py
+++ b/diffsynth/pipelines/base.py
@@ -47,8 +47,11 @@ class BasePipeline(torch.nn.Module):
         return value
 
 
-    def control_noise_via_local_prompts(self, prompt_emb_global, prompt_emb_locals, masks, mask_scales, inference_callback, special_kwargs={}, special_local_kwargs_list=None):
-        noise_pred_global = inference_callback(prompt_emb_global, special_kwargs)
+    def control_noise_via_local_prompts(self, prompt_emb_global, prompt_emb_locals, masks, mask_scales, inference_callback, special_kwargs=None, special_local_kwargs_list=None):
+        if special_kwargs is None:
+            noise_pred_global = inference_callback(prompt_emb_global)
+        else:
+            noise_pred_global = inference_callback(prompt_emb_global, special_kwargs)
         if special_local_kwargs_list is None:
             noise_pred_locals = [inference_callback(prompt_emb_local) for prompt_emb_local in prompt_emb_locals]
         else: