diff --git a/lib/Makefile.in b/lib/Makefile.in
index 1708ee8e77..420f61c26e 100644
--- a/lib/Makefile.in
+++ b/lib/Makefile.in
@@ -17,7 +17,7 @@ srcdir =	@srcdir@
 VPATH =		@srcdir@
 top_srcdir =	@top_srcdir@
 
-SUBDIRS =	isc dns tests
+SUBDIRS =	isc dns lwres tests
 TARGETS =
 
 @BIND9_MAKE_RULES@