diff --git a/d2/book1/script.js b/d2/book1/script.js
index 3179a36..2ca4de0 100644
--- a/d2/book1/script.js
+++ b/d2/book1/script.js
@@ -13,7 +13,7 @@ class Future {
 
 context.loading.script = new Future();
 
-$(window).on('load', () => {
+$(window).on('load', async () => {
 
   var synth = window.speechSynthesis;
 
@@ -339,7 +339,7 @@ $(window).on('load', () => {
 
       //voiceSelect.selectedIndex = selectedIndex;
     },
-    init: () => {
+    init: async () => {
       let state = context.callbacks.get_state();
       context.ui.voice_select.val(state.voice);
       if (!state.book_id)
@@ -358,7 +358,7 @@ $(window).on('load', () => {
       }
       if (state.book_url)
       {
-        context.callbacks.book_add(state.book_url);
+        await context.callbacks.book_add(state.book_url);
         state.book_id = context.books.length - 1;
       }
 
@@ -382,7 +382,7 @@ $(window).on('load', () => {
     speechSynthesis.onvoiceschanged = context.callbacks.populateVoiceList;
   }
 
-  context.callbacks.init();
+  await context.callbacks.init();
 
   context.ui.add_book.on(
     'click',