diff --git a/clickhouse-cloud/combinations.sh b/clickhouse-cloud/combinations.sh
index 9ee6f990e..bf501d958 100755
--- a/clickhouse-cloud/combinations.sh
+++ b/clickhouse-cloud/combinations.sh
@@ -36,3 +36,5 @@ do
     export PROVIDER TIER REGION MEMORY PARALLEL_REPLICA
     ./cloud-api.sh &
 done
+
+wait