diff --git a/usr.bin/su/Makefile b/usr.bin/su/Makefile
index f6d95defa195..b43d7592ef89 100644
--- a/usr.bin/su/Makefile
+++ b/usr.bin/su/Makefile
@@ -10,7 +10,7 @@ LIBADD+=	bsm
 .endif
 
 BINOWN=	root
-BINMODE=4555
+BINMODE=0555
 PRECIOUSPROG=
 
 .include <bsd.prog.mk>
