diff --git a/cps/static/js/libs/viewer.js b/cps/static/js/libs/viewer.js
index 1adf130b..fb215f7e 100644
--- a/cps/static/js/libs/viewer.js
+++ b/cps/static/js/libs/viewer.js
@@ -4372,7 +4372,7 @@ var defaultOptions = {
     kind: OptionKind.WORKER
   },
   workerSrc: {
-    value: '../build/pdf.worker.js',
+    value: '../../../static/js/libs/pdf.worker.js',
     kind: OptionKind.WORKER
   }
 };
diff --git a/cps/templates/readpdf.html b/cps/templates/readpdf.html
index 3e74a5a3..b4987e72 100644
--- a/cps/templates/readpdf.html
+++ b/cps/templates/readpdf.html
@@ -34,9 +34,7 @@ See https://github.com/adobe-type-tools/cmap-resources
     <!--script src="{{ url_for('static', filename='js/libs/compatibility.js') }}"></script-->
 
 <!-- This snippet is used in production (included from viewer.html) -->
-<link rel="resource" type="application/l10n" href="{{ url_for('static', filename='locale/locale.properties') }}">
-<script src="{{ url_for('static', filename='js/libs/pdf.js') }}"></script>
-
+    <link rel="resource" type="application/l10n" href="{{ url_for('static', filename='locale/locale.properties') }}">
     <script type="text/javascript">
     window.addEventListener('load', function() {
         PDFViewerApplicationOptions.set('sidebarViewOnLoad', 0);
@@ -45,9 +43,11 @@ See https://github.com/adobe-type-tools/cmap-resources
         PDFViewerApplicationOptions.set('defaultUrl',"{{ url_for('web.serve_book', book_id=pdffile, book_format='pdf') }}")
     });
     </script>
-
+    <script src="{{ url_for('static', filename='js/libs/pdf.js') }}"></script>
     <script src="{{ url_for('static', filename='js/libs/viewer.js') }}"></script>
 
+
+
   </head>
 
   <body tabindex="1" class="loadingInProgress">
