Index: trunk/src_plugins/ddraft/constraint_gui.c
===================================================================
--- trunk/src_plugins/ddraft/constraint_gui.c	(revision 21555)
+++ trunk/src_plugins/ddraft/constraint_gui.c	(revision 21556)
@@ -204,6 +204,7 @@
 		return 0; /* do not open another */
 
 	PCB_DAD_BEGIN_VBOX(cnstgui_ctx.dlg);
+		PCB_DAD_COMPFLAG(cnstgui_ctx.dlg, PCB_HATF_EXPFILL);
 		PCB_DAD_BEGIN_TABBED(cnstgui_ctx.dlg, tab_names);
 
 			/* line */