diff --git a/heat/engine/resources/openstack/neutron/port.py b/heat/engine/resources/openstack/neutron/port.py
index 78af5a8321..4ca10292c4 100644
--- a/heat/engine/resources/openstack/neutron/port.py
+++ b/heat/engine/resources/openstack/neutron/port.py
@@ -538,8 +538,9 @@ class Port(neutron.NeutronResource):
     def restore_prev_rsrc(self, convergence=False):
         # In case of convergence, during rollback, the previous rsrc is
         # already selected and is being acted upon.
-        bakup_resources = self.stack._backup_stack().resources
-        prev_port = self if convergence else bakup_resources.get(self.name)
+        backup_stack = self.stack._backup_stack()
+        backup_res = backup_stack.resources.get(self.name)
+        prev_port = self if convergence else backup_res
         fixed_ips = prev_port.data().get('port_fip', [])
 
         props = {'fixed_ips': []}
diff --git a/heat/engine/resources/openstack/nova/server_network_mixin.py b/heat/engine/resources/openstack/nova/server_network_mixin.py
index 40349860bd..979e2b9251 100644
--- a/heat/engine/resources/openstack/nova/server_network_mixin.py
+++ b/heat/engine/resources/openstack/nova/server_network_mixin.py
@@ -477,7 +477,8 @@ class ServerNetworkMixin(object):
 
         # In case of convergence, during rollback, the previous rsrc is
         # already selected and is being acted upon.
-        backup_res = self.stack._backup_stack().resources.get(self.name)
+        backup_stack = self.stack._backup_stack()
+        backup_res = backup_stack.resources.get(self.name)
         prev_server = self if convergence else backup_res
 
         if convergence: