diff --git a/tempest/lib/api_schema/response/compute/v2_1/servers.py b/tempest/lib/api_schema/response/compute/v2_1/servers.py
index 63e8467..1264416 100644
--- a/tempest/lib/api_schema/response/compute/v2_1/servers.py
+++ b/tempest/lib/api_schema/response/compute/v2_1/servers.py
@@ -238,14 +238,17 @@
     'status_code': [200],
     'response_body': {
         'type': 'object',
-        'properties': {
-            'adminPass': {'type': 'string'}
-        },
         'additionalProperties': False,
-        'required': ['adminPass']
     }
 }
 
+rescue_server_with_admin_pass = copy.deepcopy(rescue_server)
+rescue_server_with_admin_pass['response_body'].update(
+    {'properties': {'adminPass': {'type': 'string'}}})
+rescue_server_with_admin_pass['response_body'].update(
+    {'required': ['adminPass']})
+
+
 list_virtual_interfaces = {
     'status_code': [200],
     'response_body': {
diff --git a/tempest/lib/services/compute/servers_client.py b/tempest/lib/services/compute/servers_client.py
index 597e815..50ce32e 100644
--- a/tempest/lib/services/compute/servers_client.py
+++ b/tempest/lib/services/compute/servers_client.py
@@ -616,7 +616,11 @@
         API reference:
         http://developer.openstack.org/api-ref-compute-v2.1.html#rescue
         """
-        return self.action(server_id, 'rescue', schema.rescue_server, **kwargs)
+        if self.enable_instance_password:
+            rescue_schema = schema.rescue_server_with_admin_pass
+        else:
+            rescue_schema = schema.rescue_server
+        return self.action(server_id, 'rescue', rescue_schema, **kwargs)
 
     def unrescue_server(self, server_id):
         """Unrescue the provided server.