From 5f77a26ea5867a9e9b8d16c806a9da9ab38f769d Mon Sep 17 00:00:00 2001
From: Mark Mikofski <bwana.marko@yahoo.com>
Date: Mon, 8 Apr 2019 15:36:05 -0700
Subject: [PATCH] DOC: fix link in docstring

* to `PVSystem` in `SingleAxisTracker`
* closes #684
---
 pvlib/tracking.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pvlib/tracking.py b/pvlib/tracking.py
index a2d9700f66..67e0b2e786 100644
--- a/pvlib/tracking.py
+++ b/pvlib/tracking.py
@@ -11,7 +11,7 @@
 
 class SingleAxisTracker(PVSystem):
     """
-    Inherits the PV modeling methods from :ref:PVSystem:.
+    Inherits the PV modeling methods from :py:class:`~pvlib.pvsystem.PVSystem`.
 
     axis_tilt : float, default 0
         The tilt of the axis of rotation (i.e, the y-axis defined by