diff --git a/mysql-test/suite/innodb/r/innodb-index.result b/mysql-test/suite/innodb/r/innodb-index.result
index df27769b810..4a9f9de352c 100644
--- a/mysql-test/suite/innodb/r/innodb-index.result
+++ b/mysql-test/suite/innodb/r/innodb-index.result
@@ -1851,6 +1851,7 @@ drop table t1;
 #
 # MDEV-15325 Incomplete validation of missing tablespace during recovery
 #
+SET GLOBAL DEBUG_DBUG='+d,fil_names_write_bogus';
 CREATE TABLE t1(f1 INT PRIMARY KEY)ENGINE=InnoDB;
 CREATE TABLE t2(f1 INT PRIMARY KEY)ENGINE=InnoDB;
 # Kill the server
diff --git a/mysql-test/suite/innodb/t/innodb-index.test b/mysql-test/suite/innodb/t/innodb-index.test
index b34133a92e9..99f0cfdba86 100644
--- a/mysql-test/suite/innodb/t/innodb-index.test
+++ b/mysql-test/suite/innodb/t/innodb-index.test
@@ -1084,6 +1084,7 @@ drop table t1;
 --echo #
 
 --source include/no_checkpoint_start.inc
+SET GLOBAL DEBUG_DBUG='+d,fil_names_write_bogus';
 CREATE TABLE t1(f1 INT PRIMARY KEY)ENGINE=InnoDB;
 
 CREATE TABLE t2(f1 INT PRIMARY KEY)ENGINE=InnoDB;