--- ray/src/px/vgaimage.c	1993/06/11 16:58:35	2.7
+++ ray/src/px/vgaimage.c	1994/09/20 15:48:36	2.8
@@ -86,7 +86,7 @@ char  *argv[];
 	int  i;
 
 	progname = argv[0] = fixargv0(argv[0]);
-	if ((gv = getenv("GAMMA")) != NULL)
+	if ((gv = getenv("DISPLAY_GAMMA")) != NULL)
 		gamcor = atof(gv);
 
 	for (i = 1; i < argc; i++)