diff --git a/build-aux/list-packages.scm b/build-aux/list-packages.scm
index 5ca2323ebc..a1bea69feb 100755
--- a/build-aux/list-packages.scm
+++ b/build-aux/list-packages.scm
@@ -206,7 +206,7 @@ (define (insert-css)
 (define (insert-js)
   "Return the JavaScript for the list-packages page."
   (format #t
-"<script language=\"javascript\" type=\"text/javascript\">
+"<script type=\"text/javascript\">
 // license: CC0
 function show_hide(idThing)
 {