--- a/traceplot.cpp	2018-06-03 12:12:59.000000000 +0200
+++ b/traceplot.cpp	2020-09-01 14:49:36.422074448 +0200
@@ -17,6 +17,7 @@
  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <QPainterPath>
 #include <QPixmapCache>
 #include <QTextStream>
 #include <QtConcurrent>
