diff --git a/conf.py b/conf.py
index a508a96f533..60ffa7b271d 100644
--- a/conf.py
+++ b/conf.py
@@ -40,6 +40,7 @@
     "pep-0012",
     "README.rst",
     "CONTRIBUTING.rst",
+    "pep_sphinx_extensions/LICENCE.rst",
 ]
 
 # -- Options for HTML output -------------------------------------------------