--- a/src/ChartiSpindel.h	Mon Nov 14 16:05:02 2022 +0100
+++ b/src/ChartiSpindel.h	Tue Nov 15 09:42:25 2022 +0100
@@ -30,7 +30,7 @@
     QChartView *chartView;
     QChart *chart;
     Callout *t_tooltip = 0;
-    QSplineSeries *temperature, *density, *battery;
+    QLineSeries *temperature, *density, *battery;
 };
 
 #endif