diff --git a/highcharts/highcharts/highchart_types.py b/highcharts/highcharts/highchart_types.py
index 4a255b1..c4d9f32 100644
--- a/highcharts/highcharts/highchart_types.py
+++ b/highcharts/highcharts/highchart_types.py
@@ -429,6 +429,7 @@
     "cropThreshold": int,
     "dashStyle": basestring,
     "lineWidth": int,
+    "linkedTo": basestring,
     "marker": (Marker, dict),
     "pointInterval": int,
     "pointPlacement": [basestring, int, float],