diff --git a/.env.template b/.env.template
index 51711aaf9..45e57f64c 100644
--- a/.env.template
+++ b/.env.template
@@ -335,7 +335,7 @@ DBGPT_LOG_LEVEL=INFO
 ## Turn off notebook display Python flow , which is enabled by default
 NOTE_BOOK_ENABLE=False
 
-# The agent historical message retention configuration defaults to the last two rounds.
-MESSAGES_KEEP_START_ROUNDS=0
-MESSAGES_KEEP_END_ROUNDS=2
+## The agent historical message retention configuration defaults to the last two rounds.
+# MESSAGES_KEEP_START_ROUNDS=0
+# MESSAGES_KEEP_END_ROUNDS=2