diff --git a/extra/db/sql/sql-tests.factor b/extra/db/sql/sql-tests.factor
index 2133b0e36c..c490ace770 100644
--- a/extra/db/sql/sql-tests.factor
+++ b/extra/db/sql/sql-tests.factor
@@ -1,4 +1,4 @@
-USING: kernel db.sql ;
+USING: kernel namespaces db.sql sequences math ;
 IN: db.sql.tests
 
 TUPLE: person name age ;