1 files changed, 4 insertions, 3 deletions
diff --git a/theme/javascript/app.js b/theme/javascript/app.js
index 38a9572..3829a42 100755
--- a/theme/javascript/app.js
+++ b/theme/javascript/app.js
@@ -12,7 +12,8 @@ require([
     "core/search"
 ], function($, storage, analytic, sharing, state, keyboard, navigation, progress, sidebar, search){
     $(document).ready(function() {
-        var $book = state.$book;
+        var $book;
+        $book = state.$book;
 
         if (state.githubId) {
             // Initialize storage
@@ -30,8 +31,8 @@ require([
 
         // Bind sharing button
         sharing.init();
-
+        
         // Init navigation
         navigation.init();
     });
-});
-\ No newline at end of file
+});