--- ray/src/util/rad.c	2015/05/27 14:12:09	2.115
+++ ray/src/util/rad.c	2015/05/27 14:32:35	2.118
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char	RCSid[] = "$Id: rad.c,v 2.115 2015/05/27 14:12:09 greg Exp $";
+static const char	RCSid[] = "$Id: rad.c,v 2.118 2015/05/27 14:32:35 greg Exp $";
 #endif
 /*
  * Executive program for oconv, rpict and pfilt
@@ -644,6 +644,8 @@ mkpmap(void)			/* run mkpmap if indicated */
 		for (cp = combuf; *cp; cp++)
 			;
 		mkpmapopts(cp);
+				/* force file overwrite */
+		cp = addarg(cp, "-fo+");
 		if (vdef(REPORT)) {
 			char	errfile[256];
 			int	n;