diff --git a/docs/conf.py b/docs/conf.py
index 812efcd9..d2cf35f2 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -23,6 +23,7 @@
     'sphinx.ext.autodoc',
     'sphinx.ext.viewcode',
     'sphinxcontrib.httpdomain',
+    'sphinxcontrib.jquery',
 ]
 
 # Do not warn about external images (status badges in README.rst)
diff --git a/js/theme.js b/js/theme.js
index 1c44e34c..af0d998d 100644
--- a/js/theme.js
+++ b/js/theme.js
@@ -1,3 +1,4 @@
+// jQuery is included via the sphinxcontrib-jquery extension that we depend on
 var jQuery = (typeof(window) != 'undefined') ? window.jQuery : require('jquery');
 
 // Sphinx theme nav state
diff --git a/setup.py b/setup.py
index 3f5ca82d..8a3c5033 100644
--- a/setup.py
+++ b/setup.py
@@ -41,6 +41,7 @@
         "Topic :: Software Development :: Documentation"
     ],
     install_requires=[
-       'sphinx'
+       'sphinx',
+       'sphinxcontrib-jquery',
     ]
 )