diff --git a/extra/io/unix/backend/backend.factor b/extra/io/unix/backend/backend.factor
index 1547ecec65..7d9f76c686 100755
--- a/extra/io/unix/backend/backend.factor
+++ b/extra/io/unix/backend/backend.factor
@@ -3,7 +3,7 @@
 USING: alien generic assocs kernel kernel.private math
 io.nonblocking sequences strings structs sbufs threads unix
 vectors io.buffers io.backend io.streams.duplex math.parser
-continuations system libc qualified namespaces ;
+continuations system libc qualified namespaces io.timeouts ;
 QUALIFIED: io
 IN: io.unix.backend
 
diff --git a/extra/io/unix/unix.factor b/extra/io/unix/unix.factor
index 7dc66a05ad..9013df29aa 100755
--- a/extra/io/unix/unix.factor
+++ b/extra/io/unix/unix.factor
@@ -1,4 +1,4 @@
-USING: io.unix.backend io.unix.files io.unix.sockets
+USING: io.unix.backend io.unix.files io.unix.sockets io.timeouts
 io.unix.launcher io.unix.mmap io.backend combinators namespaces
 system vocabs.loader ;