diff --git a/pkgs/development/python-modules/sphinx_rtd_theme/default.nix b/pkgs/development/python-modules/sphinx_rtd_theme/default.nix
index fcdb3abbe66..515f6b6156a 100644
--- a/pkgs/development/python-modules/sphinx_rtd_theme/default.nix
+++ b/pkgs/development/python-modules/sphinx_rtd_theme/default.nix
@@ -2,6 +2,8 @@
 , buildPythonPackage
 , fetchPypi
 , sphinx
+, readthedocs-sphinx-ext
+, pytest
 }:
 
 buildPythonPackage rec {
@@ -15,6 +17,12 @@ buildPythonPackage rec {
 
   propagatedBuildInputs = [ sphinx ];
 
+  checkInputs = [ readthedocs-sphinx-ext pytest ];
+
+  checkPhase = ''
+    py.test
+  '';
+
   meta = with stdenv.lib; {
     description = "ReadTheDocs.org theme for Sphinx";
     homepage = https://github.com/snide/sphinx_rtd_theme/;