diff --git a/rowers/tests/test_staticcharts.py b/rowers/tests/test_staticcharts.py
index cd7bc7ed..1710717e 100644
--- a/rowers/tests/test_staticcharts.py
+++ b/rowers/tests/test_staticcharts.py
@@ -56,6 +56,7 @@ class PlotTests(TestCase):
             'ftp':r.ftp,
             'powerperc':serialize_list(powerperc),
             'powerzones':serialize_list(r.powerzones),
+            'hrzones': serialize_list(r.hrzones),
         }
 
         self.c = Client()