diff --git a/openstack/keystoneauth1/0001-Fix-rate-semaphore-for-keystoneclient.patch b/openstack/keystoneauth1/0001-Fix-rate-semaphore-for-keystoneclient.patch
new file mode 100644
index 000000000..8783f8174
--- /dev/null
+++ b/openstack/keystoneauth1/0001-Fix-rate-semaphore-for-keystoneclient.patch
@@ -0,0 +1,41 @@
+From 7b74cc9adb77f025190557e47f6dadae110e6ab5 Mon Sep 17 00:00:00 2001
+From: Colleen Murphy <colleen.murphy@suse.de>
+Date: Tue, 5 Mar 2019 10:00:46 +0100
+Subject: [PATCH] Fix rate semaphore for keystoneclient
+
+When using keystoneclient sessions, the new parameter is not available
+and breaks the keystoneclient unit tests[1]. Only use the semaphore
+kwarg when using keystoneauth sessions.
+
+[1] https://review.openstack.org/640953
+
+Change-Id: I0cc7f2514e143ec532d8fb895618f7cf1fea9cc3
+---
+ keystoneauth1/adapter.py | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/keystoneauth1/adapter.py b/keystoneauth1/adapter.py
+index a15fd54..6bba62f 100644
+--- a/keystoneauth1/adapter.py
++++ b/keystoneauth1/adapter.py
+@@ -217,6 +217,8 @@ class Adapter(object):
+                 kwargs.setdefault('client_name', self.client_name)
+             if self.client_version:
+                 kwargs.setdefault('client_version', self.client_version)
++            if self._rate_semaphore:
++                kwargs.setdefault('rate_semaphore', self._rate_semaphore)
+ 
+         else:
+             warnings.warn('Using keystoneclient sessions has been deprecated. '
+@@ -232,8 +234,6 @@ class Adapter(object):
+         if self.raise_exc is not None:
+             kwargs.setdefault('raise_exc', self.raise_exc)
+ 
+-        kwargs.setdefault('rate_semaphore', self._rate_semaphore)
+-
+         return self.session.request(url, method, **kwargs)
+ 
+     def get_token(self, auth=None):
+-- 
+2.21.0
+
diff --git a/openstack/keystoneauth1/keystoneauth1.spec.j2 b/openstack/keystoneauth1/keystoneauth1.spec.j2
index 86a5c94bb..6c8c985ad 100644
--- a/openstack/keystoneauth1/keystoneauth1.spec.j2
+++ b/openstack/keystoneauth1/keystoneauth1.spec.j2
@@ -7,6 +7,8 @@ License:        {{ license('Apache-2.0') }}
 Group:          Development/Languages/Python
 URL:            https://launchpad.net/keystoneauth
 Source0:        https://files.pythonhosted.org/packages/source/k/%{sname}/%{sname}-%{version}.tar.gz
+# https://review.openstack.org/640957
+Patch0:         0001-Fix-rate-semaphore-for-keystoneclient.patch
 BuildRequires:  openstack-macros
 BuildRequires:  {{ py2pkg('PyYAML', py_versions=['py2', 'py3']) }}
 BuildRequires:  {{ py2pkg('betamax', py_versions=['py2', 'py3']) }}
@@ -55,7 +57,7 @@ BuildRequires:  {{ py2pkg('openstackdocstheme') }}
 Documentation for OpenStack authenticating tools.
 
 %prep
-%autosetup -n %{sname}-%{version}
+%autosetup -p1 -n %{sname}-%{version}
 %py_req_cleanup
 sed -i 's/^warning-is-error.*/warning-is-error = 0/g' setup.cfg