diff --git a/ee/tabby-ui/components/chat/question-answer.tsx b/ee/tabby-ui/components/chat/question-answer.tsx
index 1b695e3e409d..527fdf39b09a 100644
--- a/ee/tabby-ui/components/chat/question-answer.tsx
+++ b/ee/tabby-ui/components/chat/question-answer.tsx
@@ -319,8 +319,7 @@ function AssistantMessageCard(props: AssistantMessageCardProps) {
           content: o.content,
           filepath: o.filepath,
           gitUrl: o.git_url,
-          // for server attachment code, startLine will not be undefined
-          startLine: o.range?.start ?? 1,
+          startLine: o.range?.start,
           language: filename2prism(o.filepath ?? '')[0],
           isClient: false
         })) ?? []