diff --git a/lib/Makefile b/lib/Makefile
index f3afacc12..8ea7e3f4c 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -2,7 +2,7 @@
 
 SUBDIR= csu libc libcurses libdriver libnetdriver libend libedit libm libsys \
 	libtimers libutil libbz2 libl libhgfs libz libfetch libarchive \
-	libvtreefs
+	libvtreefs libaudiodriver
 
 .if ${COMPILER_TYPE} == "ack"
 SUBDIR+= ack/libd ack/libe ack/libfp ack/liby