diff --git a/docs/new-applet-HOWTO.txt b/docs/new-applet-HOWTO.txt
index 2fc95d36d..605974c3a 100644
--- a/docs/new-applet-HOWTO.txt
+++ b/docs/new-applet-HOWTO.txt
@@ -52,10 +52,10 @@ int mu_main(int argc, char **argv)
 	char mu;
 
 	if ((fd = open("/dev/random", O_RDONLY)) < 0)
-		perror_msg_and_die("/dev/random");
+		bb_perror_msg_and_die("/dev/random");
 
 	if ((n = safe_read(fd, &mu, 1)) < 1)
-		perror_msg_and_die("/dev/random");
+		bb_perror_msg_and_die("/dev/random");
 
 	return mu;
 }
@@ -137,11 +137,6 @@ algorithm in busybox.c and the Gods of BusyBox smite you. Yea, verily:
 	/* all programs below here are alphabetically "greater than" 'mu' */
 
 
-Finally, add a define for your applet to include/config.h
-
-	#undef CONFIG_MU
-
-
 Documentation
 -------------