diff --git a/test/test_registry.d b/test/test_registry.d
index f5d14c1..7b6f67f 100755
--- a/test/test_registry.d
+++ b/test/test_registry.d
@@ -38,7 +38,7 @@
 {
 	import std.conv;
 	immutable folder = readRequiredOption!string("folder", "Folder to service files from.");
-	immutable port = readRequiredOption!uint("port", "Port to use");
+	immutable port = readRequiredOption!ushort("port", "Port to use");
 	auto router = new URLRouter;
 	router.get("stop", (HTTPServerRequest req, HTTPServerResponse res){
 		res.writeVoidBody;