diff --git a/doc/glossary.rst b/doc/glossary.rst
index 6dc2d55ccb..f94b4e7c83 100644
--- a/doc/glossary.rst
+++ b/doc/glossary.rst
@@ -2,6 +2,7 @@ Glossary
 ########
 
 .. glossary::
+   :sorted:
 
    Actions
       An *action* is a function which is triggered by a user intervention.