diff --git a/tests/queries/0_stateless/02864_statistic_exception.sql b/tests/queries/0_stateless/02864_statistic_exception.sql
index c37f6b1ce06..092fa9bda85 100644
--- a/tests/queries/0_stateless/02864_statistic_exception.sql
+++ b/tests/queries/0_stateless/02864_statistic_exception.sql
@@ -47,7 +47,7 @@ ALTER TABLE t1 MATERIALIZE STATISTIC b TYPE tdigest; -- { serverError ILLEGAL_ST
 
 ALTER TABLE t1 ADD STATISTIC a TYPE tdigest;
 ALTER TABLE t1 ADD STATISTIC b TYPE tdigest;
-ALTER TABLE t1 MODIFY COLUMN a Float64 TTL now() + INTERVAL 1 MONTH;
+ALTER TABLE t1 MODIFY COLUMN a Float64 TTL toDateTime(b) + INTERVAL 1 MONTH;
 ALTER TABLE t1 MODIFY COLUMN a Int64; -- { serverError ALTER_OF_COLUMN_IS_FORBIDDEN }
 
 DROP TABLE t1;