diff --git a/lib/libpam/modules/pam_ssh/Makefile b/lib/libpam/modules/pam_ssh/Makefile
index a2dabc58389f..c9240a21261f 100644
--- a/lib/libpam/modules/pam_ssh/Makefile
+++ b/lib/libpam/modules/pam_ssh/Makefile
@@ -7,6 +7,7 @@ LIB=	pam_ssh
 MAN=	pam_ssh.8
 SRCS=	pam_ssh.c
 
+WARNS?=	5
 CFLAGS+= -I${SSHDIR} -include ssh_namespace.h
 SRCS+=	 ssh_namespace.h