--- a/src/glShared.h	Wed Feb 14 15:17:30 2018 +0200
+++ b/src/glShared.h	Thu Feb 15 10:24:39 2018 +0200
@@ -47,6 +47,8 @@
 	}
 };
 
+Q_DECLARE_METATYPE(LDPolygon)
+
 enum class VboClass
 {
 	Lines,