diff --git a/doc/source/conf.py b/doc/source/conf.py
index 7c726d2..b7a0a59 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -43,8 +43,8 @@ source_suffix = '.rst'
 master_doc = 'index'
 
 # General information about the project.
-project = u'os-api-ref'
-copyright = u'2018, The contributors'
+project = 'os-api-ref'
+copyright = '2018, The contributors'
 
 # If true, '()' will be appended to :func: etc. cross-reference text.
 add_function_parentheses = True
@@ -75,6 +75,6 @@ htmlhelp_basename = '%sdoc' % project
 latex_documents = [
     ('index',
      '%s.tex' % project,
-     u'%s Documentation' % project,
-     u'OpenStack Foundation', 'manual'),
+     '%s Documentation' % project,
+     'OpenStack Foundation', 'manual'),
 ]