--- a/mod_measure_active_users/mod_measure_active_users.lua	Sat Dec 06 18:22:04 2025 +0000
+++ b/mod_measure_active_users/mod_measure_active_users.lua	Thu Dec 18 10:43:50 2025 +0000
@@ -1,4 +1,8 @@
-local store = module:open_store("lastlog2");
+local is_prosody_13 = prosody.features:contains("loader"); -- proxy for mod_account_activity
+
+local activity_mod = is_prosody_13 and "account_activity" or "lastlog2";
+
+local store = module:open_store(activity_mod);
 
 local measure_d1 = module:measure("active_users_1d", "amount");
 local measure_d7 = module:measure("active_users_7d", "amount");
@@ -9,7 +13,7 @@
 -- Exclude disabled user accounts from the counts if usermanager supports that API
 local count_disabled = module:get_option_boolean("measure_active_users_count_disabled", is_enabled == nil);
 
-local get_last_active = module:depends("lastlog2").get_last_active;
+local get_last_active = module:depends(activity_mod).get_last_active;
 
 function update_calculations()
 	module:log("debug", "Calculating active users");