closes #6642

public/src/modules/chat.js

@@ -211,7 +211,7 @@ define('chat', [
 			chatModal.find('.modal-header').on('dblclick', gotoChats);
 			chatModal.find('button[data-action="maximize"]').on('click', gotoChats);
 			chatModal.find('button[data-action="minimize"]').on('click', function () {
-				var uuid = chatModal.attr('uuid');
+				var uuid = chatModal.attr('data-uuid');
 				module.minimize(uuid);
 			});