diff --git a/doc/conf.py b/doc/conf.py
index b886e51cd707b62f67f2e6197ac3a8adf93555e6..9c13991783ac83bd4b6cb87787d11bd9711efb56 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -10,7 +10,6 @@ import pkg_resources
 # a list of builtin themes.
 import sphinx_rtd_theme
 
-
 # For inter-documentation mapping:
 from bob.extension.utils import link_documentation
 from bob.extension.utils import load_requirements
@@ -82,8 +81,8 @@ source_suffix = ".rst"
 master_doc = "index"
 
 # General information about the project.
-project = u"beat.backend.python"
-copyright = u"%s, Idiap Research Institute" % time.strftime("%Y")
+project = "beat.backend.python"
+copyright = "%s, Idiap Research Institute" % time.strftime("%Y")
 
 # Grab the setup entry
 distribution = pkg_resources.require(project)[0]
@@ -133,8 +132,8 @@ pygments_style = "sphinx"
 
 # Some variables which are useful for generated material
 project_variable = project.replace(".", "_")
-short_description = u"BEAT Platform (Python backend)"
-owner = [u"Idiap Research Institute"]
+short_description = "BEAT Platform (Python backend)"
+owner = ["Idiap Research Institute"]
 
 
 # -- Options for HTML output ---------------------------------------------------
@@ -212,7 +211,7 @@ html_favicon = "img/favicon.ico"
 # html_file_suffix = None
 
 # Output file base name for HTML help builder.
-htmlhelp_basename = project_variable + u"_doc"
+htmlhelp_basename = project_variable + "_doc"
 
 
 # -- Post configuration --------------------------------------------------------