Index: VerpakkingsDefinitie/UI/VerpakkingDetailScherm.pas
===================================================================
diff -u -r618 -r622
--- VerpakkingsDefinitie/UI/VerpakkingDetailScherm.pas	(.../VerpakkingDetailScherm.pas)	(revision 618)
+++ VerpakkingsDefinitie/UI/VerpakkingDetailScherm.pas	(.../VerpakkingDetailScherm.pas)	(revision 622)
@@ -89,7 +89,7 @@
   FProductsAgent := ProductsAgent;
   // Observer
   self.FProductVerpakkingSubject := ProductVerpakkingSubject;
-  self.FProductVerpakkingSubjectObserver := TSubjectObserver.Create(self);
+  self.FProductVerpakkingSubjectObserver := TSubjectObserver.Create();
   self.FProductVerpakkingSubjectObserver.OnChange := UpdateGui;
 end;