Index: export_stl.c
===================================================================
--- export_stl.c	(revision 30954)
+++ export_stl.c	(revision 30955)
@@ -212,7 +212,7 @@
 	if (options[HA_ovrthick].crd > 0) thick = options[HA_ovrthick].crd;
 	else thick = pcb_board_thickness(PCB, "stl", PCB_BRDTHICK_PRINT_ERROR);
 	if (thick <= 0) {
-		rnd_message(PCB_MSG_WARNING, "STL: can not determine board thickness - falling back to hardwired 1.6mm\n");
+		rnd_message(RND_MSG_WARNING, "STL: can not determine board thickness - falling back to hardwired 1.6mm\n");
 		thick = PCB_MM_TO_COORD(1.6);
 	}