diff --git a/bin/hostname/hostname.c b/bin/hostname/hostname.c
index 87136eb5f408..ecc319db6b17 100644
--- a/bin/hostname/hostname.c
+++ b/bin/hostname/hostname.c
@@ -49,7 +49,7 @@ __FBSDID("$FreeBSD$");
 #include <string.h>
 #include <unistd.h>
 
-static void usage(void);
+static void usage(void) __dead2;
 
 int
 main(int argc, char *argv[])