diff --git a/sbin/devd/Makefile b/sbin/devd/Makefile
index 562c1346ca8a..85d0d591c6db 100644
--- a/sbin/devd/Makefile
+++ b/sbin/devd/Makefile
@@ -2,6 +2,7 @@
 
 .include <src.opts.mk>
 
+WARNS?= 3
 PACKAGE=runtime
 PROG_CXX=devd
 SRCS=	devd.cc token.l parse.y y.tab.h