--- a/util/promise.lua	Thu Oct 18 00:49:29 2018 +0200
+++ b/util/promise.lua	Thu Oct 18 12:03:33 2018 +0100
@@ -119,7 +119,7 @@
 end
 
 local function reject(v)
-	return new(function (_reject)
+	return new(function (_, _reject)
 		_reject(v);
 	end);
 end