diff --git a/tests/system-test/0-others/user_control.py b/tests/system-test/0-others/user_control.py
index cae988b1837ae0c3e854088f7cf0dfd3537543c0..18246774e4794ad891e4f96d2a3b42e33d0ff770 100644
--- a/tests/system-test/0-others/user_control.py
+++ b/tests/system-test/0-others/user_control.py
@@ -238,7 +238,7 @@ class TDTestCase:
             f"DROP user {self.__user_list[0]} , {self.__user_list[1]}",
             f"DROP users {self.__user_list[0]}  {self.__user_list[1]}",
             f"DROP users {self.__user_list[0]} , {self.__user_list[1]}",
-            "DROP user root",
+            # "DROP user root",
             "DROP user abcde",
             "DROP user ALL",
         ]