diff --git a/docs/zh/06-advanced/06-TDgpt/04-forecast/index.md b/docs/zh/06-advanced/06-TDgpt/04-forecast/index.md
index c7388ab9c0..a1149772d0 100644
--- a/docs/zh/06-advanced/06-TDgpt/04-forecast/index.md
+++ b/docs/zh/06-advanced/06-TDgpt/04-forecast/index.md
@@ -14,7 +14,7 @@ description: 预测算法
 
 ```bash
 taos> select * from foo;
-           ts            |      k      |
+           ts            |      i32    |
 ========================================
  2020-01-01 00:00:12.681 |          13 |
  2020-01-01 00:00:13.727 |          14 |