diff --git a/lib/chatgpt.js b/lib/chatgpt.js
index 31df256..4950859 100644
--- a/lib/chatgpt.js
+++ b/lib/chatgpt.js
@@ -29,7 +29,7 @@ function chat(content) {
             "messages": [
                 {
                     "role": "developer",
-                    "content": "Write all future code examples in JavaScript ES3 using the exports variable. Respond exclusively in code without blocks."
+                    "content": "Write all future code examples in JavaScript ES3 using the exports variable. Include a test method with the fixed name test. Respond exclusively in code without blocks."
                 }, {
                     "role": "user",
                     "content": content