diff -Naru a/modules/QtPDF/src/PDFBackend.cpp b/modules/QtPDF/src/PDFBackend.cpp
--- a/modules/QtPDF/src/PDFBackend.cpp	2020-05-31 15:53:04.028318169 +0200
+++ b/modules/QtPDF/src/PDFBackend.cpp	2020-05-31 15:53:35.765318879 +0200
@@ -15,6 +15,7 @@
 #include <PDFBackend.h>
 #include <QPainter>
 #include <QApplication>
+#include <QPainterPath>
 
 namespace QtPDF {