diff --git a/components/app/windows/newsView.vue b/components/app/windows/newsView.vue
index 8b0fff2..fe9b454 100644
--- a/components/app/windows/newsView.vue
+++ b/components/app/windows/newsView.vue
@@ -88,7 +88,7 @@ const aiSummary = async () => {
   isGenerating.value = true;
   try {
     const req = await fetch(
-      `/api/ai/summarize/${slug}?lang=${String(locale.value)}`,
+      `/api/ai/summarize/${slug}?locale=${String(locale.value)}`,
     );
     const reader = req.body?.getReader();
     const decoder = new TextDecoder();
diff --git a/server/api/ai/summarize/[slug].ts b/server/api/ai/summarize/[slug].ts
index 7ac2dc6..fca0869 100644
--- a/server/api/ai/summarize/[slug].ts
+++ b/server/api/ai/summarize/[slug].ts
@@ -38,7 +38,7 @@ export default defineEventHandler(async (event) => {
       },
       {
         role: "system",
-        content: `You are a news summarizer. You will be given a news article and you will summarize it into a short paragraph. The user's current locale is ${locale.toString()} please use the correct language as the response.`,
+        content: `You are a news summarizer. You will be given a news article and you will summarize it into a short paragraph. The user's current locale is ${locale || "zh-tw"} please use the correct language as the response.`,
       },
     ],
     model: "gemma2-9b-it",