diff --git a/cloudcafe/identity/config.py b/cloudcafe/identity/config.py
index df7bc1ce..c9a60d64 100644
--- a/cloudcafe/identity/config.py
+++ b/cloudcafe/identity/config.py
@@ -47,3 +47,11 @@ class IdentityTokenConfig(ConfigSectionInterface):
     @property
     def authentication_endpoint(self):
         return self.get("authentication_endpoint")
+
+
+class IdentityExtensionConfig(ConfigSectionInterface):
+    SECTION_NAME = 'extension_api'
+
+    @property
+    def openstack_keystone_admin(self):
+        return self.get("openstack_keystone_admin")
diff --git a/configs/identity/reference.json.config b/configs/identity/reference.json.config
index a4c2a0ba..00a708d5 100644
--- a/configs/identity/reference.json.config
+++ b/configs/identity/reference.json.config
@@ -19,3 +19,6 @@ username=admin
 password=password
 tenant_name=admin
 authentication_endpoint=http://111.111.111.111:1000
+
+[extension_api]
+openstack_keystone_admin=OS-KADM