diff --git a/modules/federation/send.cc b/modules/federation/send.cc
index 7291bccf2..94834e8db 100644
--- a/modules/federation/send.cc
+++ b/modules/federation/send.cc
@@ -155,7 +155,8 @@ resource::method method_put
 {
 	send_resource, "PUT", handle_put,
 	{
-		method_put.VERIFY_ORIGIN
+		method_put.VERIFY_ORIGIN,
+		4_MiB // larger = HTTP 413  //TODO: conf
 	}
 };