diff --git a/roles/prosody/templates/prosody.cfg.lua.j2 b/roles/prosody/templates/prosody.cfg.lua.j2
index 4e43d26..0dd2e81 100644
--- a/roles/prosody/templates/prosody.cfg.lua.j2
+++ b/roles/prosody/templates/prosody.cfg.lua.j2
@@ -67,6 +67,7 @@ modules_enabled = {
 		--"legacyauth"; -- Legacy authentication. Only used by some old clients and bots.
 		"carbons"; -- XEP-0280: Message Carbons
 		"smacks"; -- XEP-0198: Reliability and fast reconnects for XMPP
+		"mam"; -- XEP-0313: Message Archive Management
 };
 
 -- These modules are auto-loaded, but should you want