diff --git a/basis/colors/hsv/hsv.factor b/basis/colors/hsv/hsv.factor
index 49552b3ac6..d00df1a8f1 100644
--- a/basis/colors/hsv/hsv.factor
+++ b/basis/colors/hsv/hsv.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2008 Eduardo Cavazos.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: accessors arrays colors combinators kernel locals math
-math.functions random sequences sorting ;
+USING: accessors arrays colors combinators fry kernel locals
+math math.functions random sequences sorting ;
 IN: colors.hsv
 
 ! h [0,360)