diff --git a/tests/zfs-tests/tests/functional/mount/cleanup.ksh b/tests/zfs-tests/tests/functional/mount/cleanup.ksh
index bd6b0e435ed1..0e88e2a1fc79 100755
--- a/tests/zfs-tests/tests/functional/mount/cleanup.ksh
+++ b/tests/zfs-tests/tests/functional/mount/cleanup.ksh
@@ -27,12 +27,14 @@
 
 #
 # Copyright (c) 2013, 2016 by Delphix. All rights reserved.
+# Copyright 2025 MNX Cloud, Inc.
 #
 
 . $STF_SUITE/include/libtest.shlib
 
 log_must destroy_pool $TESTPOOL
 
-for dir in $TESTDIRS; do
+for i in 1 2 3; do
+	dir=$TESTDIR.$i
 	rm -rf $dir
 done