diff --git a/zh/searchurl/txt/mdict.html b/zh/searchurl/txt/mdict.html
index 30f2b8f..6cd1993 100644
--- a/zh/searchurl/txt/mdict.html
+++ b/zh/searchurl/txt/mdict.html
@@ -75,9 +75,9 @@
     </section>
     <script>
       //?file=./xxx/xx.xx,./xx/xx.xxx#word=
-      let dictinput = document.getElementById('dictfile');
-      let wordinput = document.getElementById('word');
-      let btnLookup = document.getElementById('btnLookup');
+      var dictinput = document.getElementById('dictfile');
+      var wordinput = document.getElementById('word');
+      var btnLookup = document.getElementById('btnLookup');
 
       window.onload = function() {
         let v = location.hash.substring(6);