diff --git a/metagpt/prompts/di/data_analyst.py b/metagpt/prompts/di/data_analyst.py
index 9ee17b4fd..6a20b57ff 100644
--- a/metagpt/prompts/di/data_analyst.py
+++ b/metagpt/prompts/di/data_analyst.py
@@ -40,5 +40,5 @@ Some text indicating your thoughts, such as how you should update the plan statu
     ...
 ]
 ```
-Notice: your output must been started with **```json [**
+Notice: your output JSON data section must been started with **```json [**
 """
diff --git a/metagpt/prompts/di/role_zero.py b/metagpt/prompts/di/role_zero.py
index de02df0b9..5a14d0b79 100644
--- a/metagpt/prompts/di/role_zero.py
+++ b/metagpt/prompts/di/role_zero.py
@@ -49,8 +49,7 @@ Some text indicating your thoughts, such as how you should update the plan statu
     ...
 ]
 ```
-Notice: your output must been started with **```json [**
-
+Notice: your output JSON data section must been started with **```json [**
 """
 JSON_REPAIR_PROMPT = """
 ## json data