diff --git a/include/arpa/Makefile b/include/arpa/Makefile
index 2e29e2c88333..260b3b347ebe 100644
--- a/include/arpa/Makefile
+++ b/include/arpa/Makefile
@@ -2,8 +2,7 @@
 
 .include <bsd.own.mk>
 
-INCS=	ftp.h inet.h nameser.h nameser_compat.h tftp.h
-INCS+=	telnet.h
+INCS=	ftp.h inet.h nameser.h nameser_compat.h telnet.h tftp.h
 
 INCSDIR=${INCLUDEDIR}/arpa