diff --git a/src/modules/layer.js b/src/modules/layer.js
index 2d0f8e08..66cc5bee 100644
--- a/src/modules/layer.js
+++ b/src/modules/layer.js
@@ -1590,7 +1590,7 @@ layer.photos = function(options, loop, key){
     });
     
     // 鼠标滚轮缩放图片事件
-    dict.main.children('img').on('mousewheel DOMMouseScroll', function(e) {
+    dict.main.on('mousewheel DOMMouseScroll', function(e) {
       var delta = e.originalEvent.wheelDelta || -e.originalEvent.detail;
       var zoomElem = dict.main.find('[toolbar-event="zoom"]');
       if (delta > 0) {