diff --git a/jplephem/__init__.py b/jplephem/__init__.py
index 59b1141..f5d9efc 100644
--- a/jplephem/__init__.py
+++ b/jplephem/__init__.py
@@ -2,6 +2,9 @@
 
 """Use a JPL ephemeris to predict planet positions.
 
+Cite as: `Astrophysics Source Code Library, record ascl:1112.014
+<https://ascl.net/1112.014>`_
+
 This package can load and use a Jet Propulsion Laboratory (JPL)
 ephemeris for predicting the position and velocity of a planet or other
 Solar System body.  It only needs `NumPy <http://www.numpy.org/>`_,
@@ -253,7 +256,6 @@ time of day.  Nearly all ``jplephem`` routines accept this optional
 ``tdb2`` argument if you wish to provide it, thanks to the work of
 Marten van Kerkwijk!
 
-
 Legacy Ephemeris Packages
 -------------------------