diff --git a/doc/source/glossary.rst b/doc/source/glossary.rst
index 2611e1076..081e50bbc 100644
--- a/doc/source/glossary.rst
+++ b/doc/source/glossary.rst
@@ -208,7 +208,7 @@ Here are some examples of
 -  `Sahara Hadoop Cluster <https://docs.openstack.org/heat/latest/template_guide/openstack.html#OS::Sahara::Cluster>`_
 -  ...
 
-It can be any of the `the official list of available resource types defined in
+It can be any of `the official list of available resource types defined in
 OpenStack for HEAT
 <https://docs.openstack.org/heat/latest/template_guide/openstack.html>`_.