diff --git a/setup.py b/setup.py
index 981b5053e270110177f297de075223de399fdd07..3b200addd2fe72e6df81551880633a12571b9bde 100644
--- a/setup.py
+++ b/setup.py
@@ -118,6 +118,7 @@ setuptools.setup(name='pystencils',
                      'autodiff': ['pystencils-autodiff'],
                      'doc': ['sphinx', 'sphinx_rtd_theme', 'nbsphinx',
                              'sphinxcontrib-bibtex', 'sphinx_autodoc_typehints', 'pandoc'],
+                     'use_cython': ['Cython']
                  },
                  tests_require=['pytest',
                                 'pytest-cov',