diff -urN cantor-19.04.1/src/cantor.h cantor-19.08.3/src/cantor.h
--- cantor-19.04.1/src/cantor.h	2019-05-02 22:14:10.000000000 +0200
+++ cantor-19.08.3/src/cantor.h	2019-11-01 22:50:43.000000000 +0100
@@ -25,6 +25,8 @@
 #include <KParts/MainWindow>
 
 #include <QList>
+#include <QStringList>
+#include <QMap>
 
 class QTabWidget;
 class KTextEdit;