diff --git a/core/io/streams/sequence/sequence.factor b/core/io/streams/sequence/sequence.factor
index 47762628fe..14a164f4b1 100644
--- a/core/io/streams/sequence/sequence.factor
+++ b/core/io/streams/sequence/sequence.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2009 Daniel Ehrenberg
 ! See http://factorcode.org/license.txt for BSD license.
 USING: sequences io io.streams.plain kernel accessors math math.order
-growable destructors combinators sequences.private ;
+growable destructors combinators sequences.private io.private ;
 IN: io.streams.sequence
 
 ! Readers