diff --git a/UPGRADE.txt b/UPGRADE.txt
index 696d4c2a8d..2e371e0a6d 100644
--- a/UPGRADE.txt
+++ b/UPGRADE.txt
@@ -24,6 +24,11 @@ from 11.9 to 11.10
  - The asterisk command line -I option and the asterisk.conf internal_timing
    option are removed and always enabled if any timing module is loaded.
 
+ - MixMonitor AMI actions now require users to have authorization classes.
+   * MixMonitor - system
+   * MixMonitorMute - call or system
+   * StopMixMonitor - call or system
+
  - Added a new Compiler Flag, REF_DEBUG. When enabled, reference counted
    objects will emit additional debug information to the refs log file located
    in the standard Asterisk log file directory. This log file is useful in
diff --git a/apps/app_mixmonitor.c b/apps/app_mixmonitor.c
index 6333fd572c..235b3d17c5 100644
--- a/apps/app_mixmonitor.c
+++ b/apps/app_mixmonitor.c
@@ -1376,9 +1376,9 @@ static int load_module(void)
 	ast_cli_register_multiple(cli_mixmonitor, ARRAY_LEN(cli_mixmonitor));
 	res = ast_register_application_xml(app, mixmonitor_exec);
 	res |= ast_register_application_xml(stop_app, stop_mixmonitor_exec);
-	res |= ast_manager_register_xml("MixMonitorMute", 0, manager_mute_mixmonitor);
-	res |= ast_manager_register_xml("MixMonitor", 0, manager_mixmonitor);
-	res |= ast_manager_register_xml("StopMixMonitor", 0, manager_stop_mixmonitor);
+	res |= ast_manager_register_xml("MixMonitorMute", EVENT_FLAG_SYSTEM | EVENT_FLAG_CALL, manager_mute_mixmonitor);
+	res |= ast_manager_register_xml("MixMonitor", EVENT_FLAG_SYSTEM, manager_mixmonitor);
+	res |= ast_manager_register_xml("StopMixMonitor", EVENT_FLAG_SYSTEM | EVENT_FLAG_CALL, manager_stop_mixmonitor);
 
 	return res;
 }