--- ray/src/px/ra_hexbit.c	2018/03/20 18:45:04	3.4
+++ ray/src/px/ra_hexbit.c	2018/04/17 17:42:28	3.5
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char	RCSid[] = "$Id: ra_hexbit.c,v 3.4 2018/03/20 18:45:04 greg Exp $";
+static const char	RCSid[] = "$Id: ra_hexbit.c,v 3.5 2018/04/17 17:42:28 greg Exp $";
 #endif
 /*
  * Create a 4x1 hex bitmap from a Radiance picture.
@@ -8,6 +8,7 @@ static const char	RCSid[] = "$Id: ra_hexbit.c,v 3.4 20
 #include  <stdio.h>
 #include  <time.h>
 
+#include  "platform.h"
 #include  "color.h"
 #include  "rtio.h"
 #include  "resolu.h"
@@ -60,6 +61,8 @@ main(
 	}
 				/* assign threshold color */
 	setcolr(threshclr, thresh, thresh, thresh);
+				/* binary input */
+	SET_FILE_BINARY(stdin);
 				/* get our header */
 	if (checkheader(stdin, COLRFMT, NULL) < 0 ||
 			fgetresolu(&xmax, &ymax, stdin) < 0)