diff --git a/keystone/assignment/backends/ldap.py b/keystone/assignment/backends/ldap.py
index cd27f9e..47635fb 100644
--- a/keystone/assignment/backends/ldap.py
+++ b/keystone/assignment/backends/ldap.py
@@ -411,6 +411,7 @@ class ProjectApi(common_ldap.EnabledEmuMixIn, common_ldap.BaseLdap):
     notfound_arg = 'project_id'  # NOTE(yorik-sar): while options_name = tenant
     options_name = 'project'
     attribute_options_names = {'name': 'name',
+                               'id': 'id',
                                'description': 'desc',
                                'enabled': 'enabled',
                                'domain_id': 'domain_id'}
@@ -491,7 +492,8 @@ class RoleApi(common_ldap.BaseLdap):
     DEFAULT_MEMBER_ATTRIBUTE = 'roleOccupant'
     NotFound = exception.RoleNotFound
     options_name = 'role'
-    attribute_options_names = {'name': 'name'}
+    attribute_options_names = {'name': 'name',
+                               'id': 'id'}
     immutable_attrs = ['id']
     model = models.Role

diff --git a/keystone/identity/backends/ldap.py b/keystone/identity/backends/ldap.py
index 517674c..7c1f5b5 100644
--- a/keystone/identity/backends/ldap.py
+++ b/keystone/identity/backends/ldap.py
@@ -193,6 +193,7 @@ class UserApi(common_ldap.EnabledEmuMixIn, common_ldap.BaseLdap):
     attribute_options_names = {'password': 'pass',
                                'email': 'mail',
                                'name': 'name',
+                               'id': 'id',
                                'enabled': 'enabled',
                                'default_project_id': 'default_project_id'}
     immutable_attrs = ['id']
@@ -256,6 +257,7 @@ class GroupApi(common_ldap.BaseLdap):
     NotFound = exception.GroupNotFound
     options_name = 'group'
     attribute_options_names = {'description': 'desc',
+                               'id': 'id',
                                'name': 'name'}
     immutable_attrs = ['name']
     model = models.Group