diff --git a/tests/functional/centos/7/bs-lvm-osds/group_vars/all b/tests/functional/centos/7/bs-lvm-osds/group_vars/all
index b06be9b70..682112e50 100644
--- a/tests/functional/centos/7/bs-lvm-osds/group_vars/all
+++ b/tests/functional/centos/7/bs-lvm-osds/group_vars/all
@@ -13,6 +13,7 @@ copy_admin_key: true
 lvm_volumes:
   - data: data-lv1
     data_vg: test_group
+    crush_device_class: test
   - data: data-lv2
     data_vg: test_group
     db: journal1
diff --git a/tests/functional/centos/7/lvm-osds/group_vars/all b/tests/functional/centos/7/lvm-osds/group_vars/all
index a449d6d19..13329f9af 100644
--- a/tests/functional/centos/7/lvm-osds/group_vars/all
+++ b/tests/functional/centos/7/lvm-osds/group_vars/all
@@ -16,6 +16,7 @@ lvm_volumes:
   - data: data-lv1
     journal: /dev/sdc1
     data_vg: test_group
+    crush_device_class: test
   - data: data-lv2
     journal: journal1
     data_vg: test_group