diff --git a/app/music_on_hold/music_on_hold.php b/app/music_on_hold/music_on_hold.php
index 85ee7fa652..039a640b30 100644
--- a/app/music_on_hold/music_on_hold.php
+++ b/app/music_on_hold/music_on_hold.php
@@ -78,7 +78,7 @@
 		}
 	}
 	unset($sql, $prep_statement, $result);
-	foreach ($mohs as $domain_uuid => &$moh) { ksort($moh); }
+	foreach ($mohs as &$moh) { ksort($moh); }
 	$moh_names['global'] = array_unique($moh_names['global']);
 	$moh_names['local'] = array_unique($moh_names['local']);
 	sort($moh_names['global'], SORT_NATURAL);