diff --git a/basis/math/matrices/matrices.factor b/basis/math/matrices/matrices.factor
index 3a3b470ac8..d6bee78c14 100644
--- a/basis/math/matrices/matrices.factor
+++ b/basis/math/matrices/matrices.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2005, 2009 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: accessors arrays columns kernel math math.bits
-math.order math.vectors sequences sequences.private ;
+math.order math.vectors sequences sequences.private fry ;
 IN: math.matrices
 
 ! Matrices