diff --git a/tests/system-test/0-others/udf_cfg2.py b/tests/system-test/0-others/udf_cfg2.py
index 67848a94305f93788c4fe43516f3ac241cb28159..a7a63bd8cf84a1c613c0286bde7fcd67efbb39f5 100644
--- a/tests/system-test/0-others/udf_cfg2.py
+++ b/tests/system-test/0-others/udf_cfg2.py
@@ -281,7 +281,6 @@ class TDTestCase:
         tdSql.error("select udf1(num1) , irate(num1) from tb;")
         tdSql.error("select udf1(num1) , sum(num1) from tb;")
         tdSql.error("select udf1(num1) , stddev(num1) from tb;")
-        tdSql.error("select udf1(num1) , mode(num1) from tb;")
         tdSql.error("select udf1(num1) , HYPERLOGLOG(num1) from tb;")
         # stable
         tdSql.error("select udf1(c1) , count(c1) from stb1;")
@@ -290,7 +289,6 @@ class TDTestCase:
         tdSql.error("select udf1(c1) , irate(c1) from stb1;")
         tdSql.error("select udf1(c1) , sum(c1) from stb1;")
         tdSql.error("select udf1(c1) , stddev(c1) from stb1;")
-        tdSql.error("select udf1(c1) , mode(c1) from stb1;")
         tdSql.error("select udf1(c1) , HYPERLOGLOG(c1) from stb1;")
 
         # regular table with select functions