diff --git a/docs/installation_iis.rst b/docs/installation_iis.rst
--- a/docs/installation_iis.rst
+++ b/docs/installation_iis.rst
@@ -126,4 +126,4 @@ application itself) that are uncaught, w
 traces, making it a lot easier to identify issues.
 
 
-.. _hgssoauthenticatio: https://bitbucket.org/domruf/hgssoauthentication
+.. _hgssoauthentication: https://bitbucket.org/domruf/hgssoauthentication