diff --git a/tests/queries/0_stateless/02403_date_time_narrowing.reference b/tests/queries/0_stateless/02403_date_time_narrowing.reference
index 1d97c361773..ff5641c3d92 100644
--- a/tests/queries/0_stateless/02403_date_time_narrowing.reference
+++ b/tests/queries/0_stateless/02403_date_time_narrowing.reference
@@ -12,8 +12,6 @@ toMonday
 1970-01-01	1970-01-01	2149-06-02	1970-01-01	2149-06-02
 toStartOfMonth
 1970-01-01	2149-06-01	1970-01-01	2149-06-01
-toStartOfMonth
-1970-01-01	2149-06-01	1970-01-01	2149-06-01
 toLastDayOfMonth
 2149-05-31	1970-01-01	2149-05-31	1970-01-01	2149-05-31
 toStartOfQuarter
diff --git a/tests/queries/0_stateless/02403_date_time_narrowing.sql b/tests/queries/0_stateless/02403_date_time_narrowing.sql
index bcc35df5934..59918e170bc 100644
--- a/tests/queries/0_stateless/02403_date_time_narrowing.sql
+++ b/tests/queries/0_stateless/02403_date_time_narrowing.sql
@@ -54,12 +54,6 @@ SELECT toStartOfMonth(toDate32('1930-01-01', 'UTC')),
        toStartOfMonth(toDateTime64('1930-01-01 12:12:12.123', 3, 'UTC'), 'UTC'),
        toStartOfMonth(toDateTime64('2151-01-01 12:12:12.123', 3, 'UTC'), 'UTC');
 
-SELECT 'toStartOfMonth';
-SELECT toStartOfMonth(toDate32('1930-01-01', 'UTC')),
-       toStartOfMonth(toDate32('2151-01-01', 'UTC')),
-       toStartOfMonth(toDateTime64('1930-01-01 12:12:12.123', 3, 'UTC'), 'UTC'),
-       toStartOfMonth(toDateTime64('2151-01-01 12:12:12.123', 3, 'UTC'), 'UTC');
-
 SELECT 'toLastDayOfMonth';
 SELECT toLastDayOfMonth(toDate('2149-06-03')),
        toLastDayOfMonth(toDate32('1930-01-01', 'UTC')),