--- a/util/random.lua	Sat Sep 16 17:22:51 2017 +0200
+++ b/util/random.lua	Sat Sep 16 17:24:56 2017 +0200
@@ -23,4 +23,5 @@
 
 return {
 	bytes = bytes;
+	_source = "/dev/urandom";
 };