Index: gerber.c
===================================================================
--- gerber.c	(revision 27092)
+++ gerber.c	(revision 27093)
@@ -866,10 +866,10 @@
 				pcb_hid_set_line_width(gc, conf_core.design.min_wid);
 			else
 				pcb_hid_set_line_width(gc, AUTO_OUTLINE_WIDTH);
-			pcb_gui->draw_line(gc, 0, 0, PCB->hidlib.size_x, 0);
-			pcb_gui->draw_line(gc, 0, 0, 0, PCB->hidlib.size_y);
-			pcb_gui->draw_line(gc, PCB->hidlib.size_x, 0, PCB->hidlib.size_x, PCB->hidlib.size_y);
-			pcb_gui->draw_line(gc, 0, PCB->hidlib.size_y, PCB->hidlib.size_x, PCB->hidlib.size_y);
+			pcb_render->draw_line(gc, 0, 0, PCB->hidlib.size_x, 0);
+			pcb_render->draw_line(gc, 0, 0, 0, PCB->hidlib.size_y);
+			pcb_render->draw_line(gc, PCB->hidlib.size_x, 0, PCB->hidlib.size_x, PCB->hidlib.size_y);
+			pcb_render->draw_line(gc, 0, PCB->hidlib.size_y, PCB->hidlib.size_x, PCB->hidlib.size_y);
 			pcb_hid_destroy_gc(gc);
 		}
 	}