diff --git a/extra/db/sql/sql.factor b/extra/db/sql/sql.factor
index 4561424a9d..184c45f8b1 100755
--- a/extra/db/sql/sql.factor
+++ b/extra/db/sql/sql.factor
@@ -1,4 +1,4 @@
-USING: kernel parser quotations classes.tuple words
+USING: kernel parser quotations classes.tuple words math.order
 namespaces.lib namespaces sequences arrays combinators
 prettyprint strings math.parser sequences.lib math symbols ;
 USE: tools.walker