diff --git a/dankclaw/Containerfile.comfyui b/dankclaw/Containerfile.comfyui
index 153d341..38eb82d 100644
--- a/dankclaw/Containerfile.comfyui
+++ b/dankclaw/Containerfile.comfyui
@@ -36,3 +36,4 @@ RUN chmod +x /opt/ComfyUI/comfyui-start.sh
 
 CMD ["/opt/ComfyUI/comfyui-start.sh"]
 EXPOSE 8188
+# v2: VAE 4D-to-5D latent expansion for video VAEs (qwen_image21)