diff -r 7c27cda03747 -r 97df974b5ed5 src/main.cpp
--- a/src/main.cpp	Fri Mar 06 23:45:44 2020 +0200
+++ b/src/main.cpp	Mon Mar 09 14:21:54 2020 +0200
@@ -21,6 +21,8 @@
 #include "mainwindow.h"
 #include "version.h"
 
+#include "linetypes/quadrilateral.h"
+
 int main(int argc, char *argv[])
 {
 	::glutInit(&argc, argv);