diff --git a/tests/system-test/2-query/last_row.py b/tests/system-test/2-query/last_row.py
index a14c64bd19..14c71ac07b 100644
--- a/tests/system-test/2-query/last_row.py
+++ b/tests/system-test/2-query/last_row.py
@@ -1072,8 +1072,6 @@ class TDTestCase:
         self.lastRowDelayTest("DELAYTEST")
         
         self.lastrow_in_subquery("db1")
-        
-        self.lastrow_in_subquery("db1")
 
     def stop(self):
         tdSql.close()