diff --git a/server/ControlScripts/LightHubScope.php b/server/ControlScripts/LightHubScope.php
index 6ad4c2d..73e57be 100644
--- a/server/ControlScripts/LightHubScope.php
+++ b/server/ControlScripts/LightHubScope.php
@@ -81,7 +81,7 @@
 	}
 
 	protected function on_online($alias, Array $muted = []) {
-		$this -> add_event_handler("button@{$alias}.online", function(Device $btns_block, Array $data) {
+		$this -> add_event_handler("button@{$alias}.online", function(Device $btns_block, Array $data) use ($muted) {
 			$btns_block_api = $btns_block -> device_api();
 			if($btns_block_api instanceof \SHServ\Tools\DeviceAPI\Button) {
 				foreach($muted as $ch) {