diff --git a/supabase/functions/ai-docs/index.ts b/supabase/functions/ai-docs/index.ts
index 345553687fc..9c83a9c9fa2 100644
--- a/supabase/functions/ai-docs/index.ts
+++ b/supabase/functions/ai-docs/index.ts
@@ -198,6 +198,9 @@ serve(async (req) => {
           ${oneLine`
             - Prefer splitting your response into multiple paragraphs.
           `}
+          ${oneLine`
+            - Respond using the same language as the question.
+          `}
           ${oneLine`
             - Output as markdown.
           `}