diff --git a/tempest/scenario/manager.py b/tempest/scenario/manager.py
index 5331b04..add754b 100644
--- a/tempest/scenario/manager.py
+++ b/tempest/scenario/manager.py
@@ -798,7 +798,7 @@
             ip = server_or_ip
         else:
             network_name_for_ssh = CONF.compute.network_for_ssh
-            ip = server_or_ip['networks'][network_name_for_ssh][0]
+            ip = server_or_ip.networks[network_name_for_ssh][0]
         if username is None:
             username = CONF.scenario.ssh_user
         if private_key is None: