diff --git a/keystoneclient/base.py b/keystoneclient/base.py
index 60a172cca..85f9cd291 100644
--- a/keystoneclient/base.py
+++ b/keystoneclient/base.py
@@ -78,6 +78,10 @@ class Manager(object):
         resp, body = self.api.get(url)
         return self.resource_class(self, body[response_key], loaded=True)
 
+    def _head(self, url):
+        resp, body = self.api.head(url)
+        return resp.status == 204
+
     def _create(self, url, body, response_key, return_raw=False):
         resp, body = self.api.post(url, body=body)
         if return_raw:
@@ -87,9 +91,10 @@ class Manager(object):
     def _delete(self, url):
         resp, body = self.api.delete(url)
 
-    def _update(self, url, body, response_key=None, method="PUT"):
+    def _update(self, url, body=None, response_key=None, method="PUT"):
         methods = {"PUT": self.api.put,
-                   "POST": self.api.post}
+                   "POST": self.api.post,
+                   "PATCH": self.api.patch}
         try:
             resp, body = methods[method](url, body=body)
         except KeyError:
diff --git a/keystoneclient/client.py b/keystoneclient/client.py
index 11e64085b..2e472d5fc 100644
--- a/keystoneclient/client.py
+++ b/keystoneclient/client.py
@@ -176,11 +176,17 @@ class HTTPClient(httplib2.Http):
     def get(self, url, **kwargs):
         return self._cs_request(url, 'GET', **kwargs)
 
+    def head(self, url, **kwargs):
+        return self._cs_request(url, 'HEAD', **kwargs)
+
     def post(self, url, **kwargs):
         return self._cs_request(url, 'POST', **kwargs)
 
     def put(self, url, **kwargs):
         return self._cs_request(url, 'PUT', **kwargs)
 
+    def patch(self, url, **kwargs):
+        return self._cs_request(url, 'PATCH', **kwargs)
+
     def delete(self, url, **kwargs):
         return self._cs_request(url, 'DELETE', **kwargs)