diff --git a/src/components/ChartView.vue b/src/components/ChartView.vue
index bc9f3e1..463d75c 100644
--- a/src/components/ChartView.vue
+++ b/src/components/ChartView.vue
@@ -60,6 +60,7 @@ export default {
       return {
         animation:                   { duration: 0 },
         responsiveAnimationDuration: 0,
+        lineTension:                 0,
         scales:                      {
           yAxes:                       this.yaxis.map (
             (y, index) => {