diff --git a/extra/bootstrap/random/random.factor b/extra/bootstrap/random/random.factor
new file mode 100644
index 0000000000..7132860e1c
--- /dev/null
+++ b/extra/bootstrap/random/random.factor
@@ -0,0 +1,8 @@
+USING: vocabs.loader sequences system ;
+
+"random.mersenne-twister" require
+
+{
+    { [ windows? ] [ "random.windows" require ] }
+    { [ unix? ] [ "random.unix" require ] }
+} cond