diff --git a/apps/web/src/pages/generate/GeneratePage.tsx b/apps/web/src/pages/generate/GeneratePage.tsx
index 5dda8a745..a3adf2bbe 100644
--- a/apps/web/src/pages/generate/GeneratePage.tsx
+++ b/apps/web/src/pages/generate/GeneratePage.tsx
@@ -86,10 +86,10 @@ const GeneratePage: React.FC = () => {
   /* ── 根据 voiceMode 构建 voiceIds 传给预览接口 ── */
   const previewVoiceIds = useMemo(() => {
     if (voiceMode === "clone") {
-      return selectedClonedVoice ? [selectedClonedVoice] : []
+      return selectedClonedVoice ? [String(selectedClonedVoice)] : []
     }
     // preset / custom 模式
-    return selectedVoice ? [selectedVoice] : []
+    return selectedVoice ? [String(selectedVoice)] : []
   }, [voiceMode, selectedVoice, selectedClonedVoice])
 
   /* ── Step4 预览生成（多预览 + voice_ids） ── */