diff --git a/requirements.txt b/requirements.txt
index e6dfbe45..5cd0ee7b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
+lxml
 PyYAML
 pycurl
 urlgrabber
diff --git a/tests/api_tests.py b/tests/api_tests.py
index c8c9a2f9..3dd8f2a6 100644
--- a/tests/api_tests.py
+++ b/tests/api_tests.py
@@ -242,7 +242,7 @@ class TestApiCalls(unittest.TestCase):
 
         self.api.create_package_container('openSUSE:Factory:Staging:B', 'wine', disable_build=True)
         self.assertEqual(httpretty.last_request().method, 'PUT')
-        self.assertEqual(httpretty.last_request().body, '<package name="wine"><title /><description /><build><disable /></build></package>')
+        self.assertEqual(httpretty.last_request().body, '<package name="wine"><title/><description/><build><disable/></build></package>')
         self.assertEqual(httpretty.last_request().path, '/source/openSUSE:Factory:Staging:B/wine/_meta')
 
     def test_review_handling(self):