diff --git a/usr.bin/su/Makefile b/usr.bin/su/Makefile
index 178e670758c3..78e0d6553213 100644
--- a/usr.bin/su/Makefile
+++ b/usr.bin/su/Makefile
@@ -5,8 +5,6 @@
 
 PROG=	su
 
-WARNS?=	5
-
 LIBADD=	util pam
 
 .if ${MK_AUDIT} != "no"