diff --git a/ui/packages/ai/components/chatContent.vue b/ui/packages/ai/components/chatContent.vue
index ad3287c5..c89a7250 100644
--- a/ui/packages/ai/components/chatContent.vue
+++ b/ui/packages/ai/components/chatContent.vue
@@ -51,7 +51,7 @@ export default {
           'https://cdn.sinoecare.com/i/2024/08/22/66c6dfdc3766a.png')
     },
     markdown(v) {
-      return this.md?.render(v) || v
+      return v ? this.md?.render(v) : v
     },
     handleDownload(item) {
       window.open(item.sdkFileUrl)