--- ray/src/rt/lookamb.c	1992/10/15 21:13:13	2.4
+++ ray/src/rt/lookamb.c	1994/02/27 10:17:33	2.6
@@ -29,6 +29,7 @@ AMBVAL  av;
 
 
 main(argc, argv)		/* load ambient values from a file */
+int  argc;
 char  *argv[];
 {
 	FILE  *fp;
@@ -64,8 +65,10 @@ char  *argv[];
 		if (header) {
 			if (checkheader(fp, "ascii", stdout) < 0)
 				goto formaterr;
-		} else
+		} else {
+			newheader("RADIANCE", stdout);
 			printargs(argc, argv, stdout);
+		}
 		fputformat(AMBFMT, stdout);
 		putchar('\n');
 #ifdef MSDOS