diff --git a/wan/any2video.py b/wan/any2video.py
index c0e5827..61d03f1 100644
--- a/wan/any2video.py
+++ b/wan/any2video.py
@@ -900,7 +900,7 @@ class WanAny2V:
         else:
             videos = videos[0] # return only first video
         if color_correction_strength > 0:
-            if vace and False:
+            if vace and False and prefix_frames_count > 0:
                 # videos = match_and_blend_colors_with_mask(videos.unsqueeze(0), input_frames[0].unsqueeze(0), input_masks[0][:1].unsqueeze(0), color_correction_strength,copy_mode= "progressive_blend").squeeze(0)
                 videos = match_and_blend_colors_with_mask(videos.unsqueeze(0), input_frames[0].unsqueeze(0), input_masks[0][:1].unsqueeze(0), color_correction_strength,copy_mode= "reference").squeeze(0)
                 # videos = match_and_blend_colors_with_mask(videos.unsqueeze(0), videos.unsqueeze(0), input_masks[0][:1].unsqueeze(0), color_correction_strength,copy_mode= "reference").squeeze(0)