--- a/src/linetypes/triangle.h	Sun Mar 05 13:33:37 2017 +0200
+++ b/src/linetypes/triangle.h	Sun Mar 05 16:47:52 2017 +0200
@@ -39,7 +39,7 @@
 	QString typeName() const override { return "triangle"; }
 
 protected:
-	friend class Model;
+	friend class ResourceVector<LDObject>;
 	LDTriangle (Model* model);
 	LDTriangle (Vertex const& v1, Vertex const& v2, Vertex const& v3, Model* model = nullptr);
-};
\ No newline at end of file
+};