diff --git a/tests/queries/0_stateless/00989_parallel_parts_loading.sql b/tests/queries/0_stateless/00989_parallel_parts_loading.sql
index 407e124f137..dc074241ff6 100644
--- a/tests/queries/0_stateless/00989_parallel_parts_loading.sql
+++ b/tests/queries/0_stateless/00989_parallel_parts_loading.sql
@@ -1,3 +1,5 @@
+-- Tags: no-random-settings, no-random-merge-tree-settings
+-- small insert block size can make insert terribly slow, especially with some build like msan
 DROP TABLE IF EXISTS mt;
 
 CREATE TABLE mt (x UInt64) ENGINE = MergeTree ORDER BY x SETTINGS parts_to_delay_insert = 100000, parts_to_throw_insert = 100000;