diff --git a/drdsreader/doc/drdsreader.md b/drdsreader/doc/drdsreader.md
index 25df920029..c54e6bd149 100644
--- a/drdsreader/doc/drdsreader.md
+++ b/drdsreader/doc/drdsreader.md
@@ -50,7 +50,7 @@ DRDS的插件目前DataX只适配了Mysql引擎的场景，DRDS对于DataX而言
                         // 数据库连接密码
                         "password": "root",
                         "column": [
-                            "id"，"name"
+                            "id","name"
                         ],
                         "connection": [
                             {
diff --git a/postgresqlreader/doc/postgresqlreader.md b/postgresqlreader/doc/postgresqlreader.md
index fed2c7e97c..02c354abec 100644
--- a/postgresqlreader/doc/postgresqlreader.md
+++ b/postgresqlreader/doc/postgresqlreader.md
@@ -48,7 +48,7 @@ PostgresqlReader插件实现了从PostgreSQL读取数据。在底层实现上，
                         // 数据库连接密码
                         "password": "xx",
                         "column": [
-                            "id"，"name"
+                            "id","name"
                         ],
                         //切分主键
                         "splitPk": "id",