diff --git a/mysql-test/suite/innodb/t/innodb_buffer_pool_resize_temporary.test b/mysql-test/suite/innodb/t/innodb_buffer_pool_resize_temporary.test
index f96f89c39d5..b4064ff3646 100644
--- a/mysql-test/suite/innodb/t/innodb_buffer_pool_resize_temporary.test
+++ b/mysql-test/suite/innodb/t/innodb_buffer_pool_resize_temporary.test
@@ -35,8 +35,9 @@ SET DEBUG_SYNC='buf_pool_shrink_before_wakeup SIGNAL blocked WAIT_FOR go';
 send SET GLOBAL innodb_buffer_pool_size=8388608;
 connection default;
 SET DEBUG_SYNC='now WAIT_FOR blocked';
-# adjust for 32-bit and SUX_LOCK_GENERIC
---replace_regex /(5..)\/\1/505\/505/
+# adjust for 32-bit and SUX_LOCK_GENERIC; other threads may already
+# have withdrawn some blocks before buf_pool_shrink_before_wakeup
+--replace_regex /\([0-9]+\/5[0-9][0-9]\)/(505\/505)/
 SHOW STATUS LIKE 'innodb_buffer_pool_resize_status';
 SET DEBUG_SYNC='now SIGNAL go';
 connection con1;