diff --git a/clickhouse/migrations/04_create_match_salts_table.sql b/clickhouse/migrations/04_create_match_salts_table.sql
index 17c25f4..0398037 100644
--- a/clickhouse/migrations/04_create_match_salts_table.sql
+++ b/clickhouse/migrations/04_create_match_salts_table.sql
@@ -2,6 +2,6 @@ CREATE TABLE IF NOT EXISTS match_salts
 (
     match_id UInt64,
     cluster_id UInt32,
-    metadata_salt UInt32,
-    replay_salt UInt32
+    metadata_salt Nullable (UInt32),
+    replay_salt Nullable (UInt32)
 ) ENGINE = ReplacingMergeTree ORDER BY (match_id);