diff --git a/js/mods.js b/js/mods.js
index f20142761ae4c9ed2cd01f718a9deca1f3182252..a135a41e487daa985541641671c6f5c239418812 100644
--- a/js/mods.js
+++ b/js/mods.js
@@ -1296,7 +1296,7 @@ function edit_module(evt) {
       update_module(idnumber)
       win.close()
       }
-   if (filename != "undefined" && != "") {
+   if (filename != "undefined" && filename != "") {
       var btn = document.createElement('button')
          btn.appendChild(document.createTextNode('reload from server'))
          btn.style.padding = mods.ui.padding