diff --git a/setup.py b/setup.py
index c9f0d434..82098618 100644
--- a/setup.py
+++ b/setup.py
@@ -41,6 +41,7 @@ install_requires = [
     'pygments',
     'pygobject',
     'PyOpenSSL',
+    'python-dateutil',
     'python-potr',
     'pyxdg',
     'sat_tmp>=0.0.3',