diff --git a/tools/ob_error/README.md b/tools/ob_error/README.md
index 3f0e545c3..5041e8b04 100644
--- a/tools/ob_error/README.md
+++ b/tools/ob_error/README.md
@@ -156,7 +156,7 @@ If you want to add the cause and solution info, you can change the define as
 DEFINE_ERROR(OB_ERROR, -4000, -1, "HY000", "Common error", "CAUSE", "SOLUTION");
 ```
 
-And then regenerate the `src/lib/oberror_errno.h`、`src/oberror_errno.h` and `src/oberror_errno.cpp` by
+And then regenerate the `src/lib/ob_errno.h`、`src/share/ob_errno.h` and `src/share/ob_errno.cpp` by
 
 ```shell
 cd src/share
diff --git a/tools/ob_error/src/ob_error.cpp b/tools/ob_error/src/ob_error.cpp
index 897a500a9..67720e18b 100644
--- a/tools/ob_error/src/ob_error.cpp
+++ b/tools/ob_error/src/ob_error.cpp
@@ -351,7 +351,7 @@ bool add_ob_info(int error_code, ObErrorInfoMgr* mgr)
       if (mgr->insert_ob_error(error_name, error_msg, error_cause, error_solution, error_code)) {
         bret = true;
       }
-    } else if (-1 == g_mysql_error[error_code][0]) {
+    } else {
       const char* error_usr_msg = ob_errpkt_str_user_error(-error_code, false);
       if (nullptr != error_usr_msg) {
         const char* error_msg = ob_errpkt_strerror(-error_code, false);
diff --git a/tools/ob_error/test/expect_result.result b/tools/ob_error/test/expect_result.result
index ade34a4a1..22dc8be04 100644
--- a/tools/ob_error/test/expect_result.result
+++ b/tools/ob_error/test/expect_result.result
@@ -101,6 +101,12 @@ OceanBase:
 	Solution: Contact OceanBase Support
 $ob_error 5133
 
+OceanBase:
+	OceanBase Error Code: OB_ERR_NO_GRANT(-5133)
+	Message: No such grant defined
+	Cause: Internal Error
+	Solution: Contact OceanBase Support
+
 MySQL:
 	MySQL Error Code: 5133 (42000)
 	Message: No such grant defined