diff --git a/include/arpa/Makefile b/include/arpa/Makefile
index a480b31341e..6b00641e65e 100644
--- a/include/arpa/Makefile
+++ b/include/arpa/Makefile
@@ -1,7 +1,12 @@
 # $FreeBSD$
 
+.include <bsd.own.mk>
+
 NO_OBJ=
-INCS=	ftp.h inet.h nameser.h nameser_compat.h telnet.h tftp.h
+INCS=	ftp.h inet.h nameser.h nameser_compat.h tftp.h
+.if ${MK_TELNET} == "NO"
+INCS+=	telnet.h
+.endif
 INCSDIR=${INCLUDEDIR}/arpa
 
 .include <bsd.prog.mk>