diff --git a/src/test/regress/expected/alter_index.out b/src/test/regress/expected/alter_index.out
index 463f44ee7..81e19a275 100644
--- a/src/test/regress/expected/alter_index.out
+++ b/src/test/regress/expected/alter_index.out
@@ -47,7 +47,7 @@ ORDER BY c.relname, a.attnum;
 \c - - - :worker_1_port
 SELECT c.relname, a.attstattarget
 FROM pg_attribute a
-JOIN pg_class c ON a.attrelid = c.oid AND c.relname LIKE 'test\_idx%'
+JOIN pg_class c ON a.attrelid = c.oid AND c.relname LIKE 'test\_idx%\_\d%'
 ORDER BY c.relname, a.attnum;
      relname      | attstattarget
 ---------------------------------------------------------------------
diff --git a/src/test/regress/multi_1_schedule b/src/test/regress/multi_1_schedule
index 70a255ba3..2a949d70e 100644
--- a/src/test/regress/multi_1_schedule
+++ b/src/test/regress/multi_1_schedule
@@ -73,14 +73,12 @@ test: multi_behavioral_analytics_basics multi_behavioral_analytics_single_shard_
 test: multi_shard_update_delete recursive_dml_with_different_planners_executors
 test: insert_select_repartition window_functions dml_recursive multi_insert_select_window
 test: multi_insert_select_conflict citus_table_triggers
-test: multi_row_insert insert_select_into_local_table multi_create_table_new_features
+test: multi_row_insert insert_select_into_local_table multi_create_table_new_features alter_index
+
 # following should not run in parallel because it relies on connection counts to workers
 test: insert_select_connection_leak
 
 test: check_mx
-test: turn_mx_off
-test: alter_index
-test: turn_mx_on
 # ---------
 # at the end of the regression tests regarding recursively planned modifications
 # ensure that we don't leak any intermediate results
diff --git a/src/test/regress/sql/alter_index.sql b/src/test/regress/sql/alter_index.sql
index 218de6efb..8e08c1f56 100644
--- a/src/test/regress/sql/alter_index.sql
+++ b/src/test/regress/sql/alter_index.sql
@@ -31,7 +31,7 @@ ORDER BY c.relname, a.attnum;
 \c - - - :worker_1_port
 SELECT c.relname, a.attstattarget
 FROM pg_attribute a
-JOIN pg_class c ON a.attrelid = c.oid AND c.relname LIKE 'test\_idx%'
+JOIN pg_class c ON a.attrelid = c.oid AND c.relname LIKE 'test\_idx%\_\d%'
 ORDER BY c.relname, a.attnum;
 \c - - - :master_port