diff --git a/package.json b/package.json
index 8c7d387..4758f69 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "hailuo-free-api",
-  "version": "0.0.9",
+  "version": "0.0.10",
   "description": "HailuoAI Free API Server",
   "type": "module",
   "main": "dist/index.js",
diff --git a/src/api/routes/audio.ts b/src/api/routes/audio.ts
index fd1ed17..a8cb156 100644
--- a/src/api/routes/audio.ts
+++ b/src/api/routes/audio.ts
@@ -8,7 +8,7 @@ import environment from "@/lib/environment.ts";
 import core from "../controllers/core.ts";
 import logger from "@/lib/logger.ts";
 
-const REPLACE_AUDIO_MODEL_ENV = environment.envVars['REPLACE_AUDIO_MODEL'].split(",").map((v) => v.trim());
+const REPLACE_AUDIO_MODEL_ENV = (environment.envVars['REPLACE_AUDIO_MODEL'] || '').split(",").map((v) => v.trim());
 const VOICE_TO_MODEL_INDEX = Object.keys(modelMap["tts-1"]).reduce(
   (obj, key, i) => {
     obj[key] = i;