diff --git a/Doc/howto/unicode.rst b/Doc/howto/unicode.rst
index 5339bf4..7b2d7b8 100644
--- a/Doc/howto/unicode.rst
+++ b/Doc/howto/unicode.rst
@@ -157,7 +157,7 @@
 origin and development of Unicode is also available on the site.
 
 On the Computerphile Youtube channel, Tom Scott briefly
-`discusses the history of Unicode and UTF-8 <https://www.youtube.com/watch?v=MijmeoH9LT4>`
+`discusses the history of Unicode and UTF-8 <https://www.youtube.com/watch?v=MijmeoH9LT4>`_
 (9 minutes 36 seconds).
 
 To help understand the standard, Jukka Korpela has written `an introductory