diff --git a/ObsoleteFiles.inc b/ObsoleteFiles.inc
index 31aac760d1d..f0029f61a1a 100644
--- a/ObsoleteFiles.inc
+++ b/ObsoleteFiles.inc
@@ -184,6 +184,9 @@ OLD_FILES+=usr/tests/lib/libarchive/test_acl_pax.tar.uu
 # 20170206: merged projects/ipsec
 OLD_FILES+=usr/include/netinet/ip_ipsec.h
 OLD_FILES+=usr/include/netinet6/ip6_ipsec.h
+# 20170123: librt moves to /lib
+OLD_LIBS+=usr/lib/librt.so.1
+OLD_LIBS+=usr/lib/librt_p.a
 # 20170103: libbsnmptools.so made into an INTERNALLIB
 OLD_FILES+=usr/lib/libbsnmptools.a
 OLD_FILES+=usr/lib/libbsnmptools_p.a
diff --git a/lib/librt/Makefile b/lib/librt/Makefile
index 5417b9ef3bf..a801efe06b6 100644
--- a/lib/librt/Makefile
+++ b/lib/librt/Makefile
@@ -1,5 +1,7 @@
 # $FreeBSD$
 
+SHLIBDIR?=	/lib
+
 .include <src.opts.mk>
 
 PACKAGE=lib${LIB}