diff --git a/tempest/api/compute/servers/test_server_rescue_negative.py b/tempest/api/compute/servers/test_server_rescue_negative.py
index b35e55c..4582a46 100644
--- a/tempest/api/compute/servers/test_server_rescue_negative.py
+++ b/tempest/api/compute/servers/test_server_rescue_negative.py
@@ -34,7 +34,7 @@
 
         cls.set_network_resources(network=True, subnet=True, router=True)
         super(ServerRescueNegativeTestJSON, cls).setUpClass()
-        cls.device = 'vdf'
+        cls.device = CONF.compute.volume_device_name
 
         # Create a volume and wait for it to become ready for attach
         resp, cls.volume = cls.volumes_extensions_client.create_volume(
diff --git a/tempest/api/compute/v3/servers/test_server_rescue_negative.py b/tempest/api/compute/v3/servers/test_server_rescue_negative.py
index 5eb6c9a..83fe128 100644
--- a/tempest/api/compute/v3/servers/test_server_rescue_negative.py
+++ b/tempest/api/compute/v3/servers/test_server_rescue_negative.py
@@ -33,7 +33,7 @@
             raise cls.skipException(msg)
 
         super(ServerRescueNegativeV3Test, cls).setUpClass()
-        cls.device = 'vdf'
+        cls.device = CONF.compute.volume_device_name
 
         # Create a volume and wait for it to become ready for attach
         resp, cls.volume = cls.volumes_client.create_volume(