diff --git a/main.ts b/main.ts
index 6480812..3b0440e 100644
--- a/main.ts
+++ b/main.ts
@@ -104,7 +104,7 @@ app.message(async (c) => {
       }
     });
 
-  if (prompt) messages.push({ role: "user", content });
+  if (content.length > 0) messages.push({ role: "user", content });
 
   if (isMention) {
     try {