diff --git a/horizon-ignore-cache-dir.patch b/horizon-ignore-cache-dir.patch
new file mode 100644
index 0000000..d8b8a28
--- /dev/null
+++ b/horizon-ignore-cache-dir.patch
@@ -0,0 +1,32 @@
+From 39e252ad056ff65c7c326095938deb1eb50c4b40 Mon Sep 17 00:00:00 2001
+From: Kiall Mac Innes <kiall@managedit.ie>
+Date: Wed, 21 Mar 2012 12:19:30 +0000
+Subject: [PATCH 1/1] Fixes bug #959262 - Prevent a failure to create the cache directory from causing an exception.
+
+Change-Id: Ia80b50b32f5e3d0e76f4a1b251e23bbd3c70666e
+---
+ novaclient/base.py |    8 ++++----
+ 1 files changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/novaclient/base.py b/novaclient/base.py
+index 4badc84..ec78aa6 100644
+--- a/novaclient/base.py
++++ b/novaclient/base.py
+@@ -114,10 +114,10 @@ class Manager(utils.HookableMixin):
+         try:
+             os.makedirs(cache_dir, 0755)
+         except OSError as e:
+-            if e.errno == errno.EEXIST:
+-                pass
+-            else:
+-                raise
++            # NOTE(kiall): This is typicaly either permission denied while
++            #              attempting to create the directory, or the directory
++            #              already exists. Either way, don't fail.
++            pass
+ 
+         resource = obj_class.__name__.lower()
+         filename = "%s-%s-cache" % (resource, cache_type.replace('_', '-'))
+-- 
+1.7.4.1
+
diff --git a/python-novaclient.spec b/python-novaclient.spec
index eebc44e..efbf40f 100644
--- a/python-novaclient.spec
+++ b/python-novaclient.spec
@@ -1,6 +1,6 @@
 Name:             python-novaclient
 Version:          2012.1
-Release:          0.3.rc1%{?dist}
+Release:          0.4.rc1%{?dist}
 Summary:          Python API and CLI for OpenStack Nova
 
 Group:            Development/Languages
@@ -9,6 +9,7 @@ URL:              http://pypi.python.org/pypi/python-novaclient
 Source0:          http://launchpad.net/nova/essex/essex-rc1/+download/python-novaclient-%{version}~rc1.tar.gz
 
 Patch1:           novaclient-remove-argparse-from-egg-requires.patch
+Patch2:           horizon-ignore-cache-dir.patch
 
 BuildArch:        noarch
 BuildRequires:    python-setuptools
@@ -42,6 +43,7 @@ This package contains auto-generated documentation.
 %setup -q
 
 %patch1 -p1
+%patch2 -p1
 
 %build
 %{__python} setup.py build
@@ -68,6 +70,9 @@ rm -fr html/.doctrees html/.buildinfo
 %doc html
 
 %changelog
+* Thu Mar 22 2012 Pádraig Brady <P@draigBrady.com> 2012.1-0.4.rc1
+- Avoid a horizon issue trying to write to /var/www (#801202)
+
 * Wed Mar 21 2012 Pádraig Brady <P@draigBrady.com> 2012.1-0.3.rc1
 - Update to essex-rc1