diff --git a/tests/system-test/1-insert/insert_double.py b/tests/system-test/1-insert/insert_double.py
index 56861f3cd4..b47b22ab44 100644
--- a/tests/system-test/1-insert/insert_double.py
+++ b/tests/system-test/1-insert/insert_double.py
@@ -40,8 +40,8 @@ class TDTestCase:
 
         # str support
         tdSql.execute(f"insert into {table_name} values(now, '-16', '+6')")
-        tdSql.execute(f"insert into {table_name} values(now, ' -80.99 ', '  +0042  ')")
-        tdSql.execute(f"insert into {table_name} values(now, ' -0042  ', ' +80.99 ')")
+        tdSql.execute(f"insert into {table_name} values(now, ' -80.99', ' +0042')")
+        tdSql.execute(f"insert into {table_name} values(now, ' -0042', ' +80.99')")
         tdSql.execute(f"insert into {table_name} values(now, '52.34354', '18.6')")
         tdSql.execute(f"insert into {table_name} values(now, '-12.', '+5.')")
         tdSql.execute(f"insert into {table_name} values(now, '-.12', '+.5')")