Merge "Cleanup existing instances in setup for test_list_servers_negative.py"
diff --git a/tempest/api/compute/servers/test_list_servers_negative.py b/tempest/api/compute/servers/test_list_servers_negative.py
index 983258d..9dd2e27 100644
--- a/tempest/api/compute/servers/test_list_servers_negative.py
+++ b/tempest/api/compute/servers/test_list_servers_negative.py
@@ -37,7 +37,7 @@
         blocks while the servers are being deleted.
         """
         if len(servers):
-            if not compute.MULTI_USER:
+            if not cls.config.compute.allow_tenant_isolation:
                 for srv in servers:
                     cls.client.wait_for_server_termination(srv['id'],
                                                            ignore_error=True)