diff --git a/keystone_tempest_plugin/clients.py b/keystone_tempest_plugin/clients.py
index 1a85bce..a72c9f5 100644
--- a/keystone_tempest_plugin/clients.py
+++ b/keystone_tempest_plugin/clients.py
@@ -15,6 +15,8 @@
 from keystone_tempest_plugin.services.identity.v3 import (
     identity_providers_client)
 from keystone_tempest_plugin.services.identity.v3 import (
+    mapping_rules_client)
+from keystone_tempest_plugin.services.identity.v3 import (
     service_providers_client)
 
 from tempest import clients
@@ -28,6 +30,9 @@
         self.identity_providers_client = (
             identity_providers_client.IdentityProvidersClient(
                 self.auth_provider))
+        self.mapping_rules_client = (
+            mapping_rules_client.MappingRulesClient(
+                self.auth_provider))
         self.service_providers_client = (
             service_providers_client.ServiceProvidersClient(
                 self.auth_provider))