diff --git a/tests/system-test/2-query/join.py b/tests/system-test/2-query/join.py
index 1ab8fe6dd87598540f25c328fcf5e18866a9225f..aea454b9b7accd623f9e68ec1c8e9cb46ee861e0 100644
--- a/tests/system-test/2-query/join.py
+++ b/tests/system-test/2-query/join.py
@@ -100,7 +100,10 @@ class TDTestCase:
                 if not join_flag :
                     tdSql.error(sql=sql)
                 if len(tblist) == 2:
-                    self.__join_current(sql, checkrows + 2 ) if where_condition else self.__join_current(sql, checkrows + 5 )
+                    if "ct1" in tblist or "t1" in tblist:
+                        self.__join_current(sql, checkrows)
+                    else:
+                        self.__join_current(sql, checkrows + 2 ) if where_condition else self.__join_current(sql, checkrows + 5 )
                 if len(tblist) > 2 or len(tblist) < 1:
                     tdSql.error(sql=sql)