diff -r bc46cfe7c037 -r 93c68c454cb8 plugins/mod_c2s.lua
--- a/plugins/mod_c2s.lua	Mon May 01 22:24:13 2023 +0200
+++ b/plugins/mod_c2s.lua	Wed May 03 18:02:11 2023 +0200
@@ -133,7 +133,7 @@
 		if stanza_size_limit then
 			features:reset();
 			features:tag("limits", { xmlns = "urn:xmpp:stream-limits:0" })
-				:text_tag("max-size", string.format("%d", stanza_size_limit)):up();
+				:text_tag("max-bytes", string.format("%d", stanza_size_limit)):up();
 		end
 		send(features);
 	else