Index: undo_act.c
===================================================================
--- undo_act.c	(revision 30954)
+++ undo_act.c	(revision 30955)
@@ -82,7 +82,7 @@
 		pcb_undo_unfreeze_serial();
 		break;
 	default:
-		rnd_message(PCB_MSG_ERROR, "Invalid argument for Atomic()\n");
+		rnd_message(RND_MSG_ERROR, "Invalid argument for Atomic()\n");
 		RND_ACT_IRES(-1);
 		return 0;
 	}