diff --git a/libexec/atrun/Makefile b/libexec/atrun/Makefile
index bdfd963d9c5b..39952fc430ea 100644
--- a/libexec/atrun/Makefile
+++ b/libexec/atrun/Makefile
@@ -14,6 +14,7 @@ CLEANFILES= ${MAN}
 CFLAGS+=-I${MAINSRC} -I${.CURDIR}
 CFLAGS+=-DLOGIN_CAP -DPAM
 
+WARNS?=	2
 WFORMAT=0
 
 LIBADD=	pam util