diff --git a/skills/voice-generation/MIGRATION.md b/skills/voice-generation/MIGRATION.md
index dd7a674..e7e41cd 100644
--- a/skills/voice-generation/MIGRATION.md
+++ b/skills/voice-generation/MIGRATION.md
@@ -67,4 +67,5 @@ real generation command: C:\Users\wangq\.conda\envs\skills-vault\Scripts\voice-g
 real generation output: D:\Mine\口播2\output\hello.mp3
 conda environment: shared skills-vault
 editable package installed in shared env: yes
+old dedicated conda env removed: C:\Users\wangq\miniconda3\envs\voice-gen
 ```