diff --git a/docs/rolereference.rst b/docs/rolereference.rst
index d91e408a5ebc7113646e2803351f4de28eb64bda..126249ff367afc8180d4e40340b9c0227ee474a6 100644
--- a/docs/rolereference.rst
+++ b/docs/rolereference.rst
@@ -941,7 +941,7 @@ Parameters
   connections. The value specified should be compatible with Prosody's
   ``protocol`` option normally defined within the ``ssl`` section of
   configuration file (see `official documentation
-  <https://prosody.im/doc/advanced_ssl_config#protocol>`_ for
+  <https://prosody.im/doc/advanced_ssl_config#protocol>`__ for
   details).
 
 **xmpp_tls_certificate** (string, mandatory)