diff --git a/src/main/resources/templates/books/book_detail.html b/src/main/resources/templates/books/book_detail.html
index a316782..f2aae04 100644
--- a/src/main/resources/templates/books/book_detail.html
+++ b/src/main/resources/templates/books/book_detail.html
@@ -221,7 +221,7 @@
 <script>
 
     function downloadFile() {
-        var fileUrl = 'http://www.zinglizingli.xyz:8080/book/download?bookId='+$("#bookIdHidden").val()+'&bookName='+$("#bookNamedHidden").val();
+        var fileUrl = '/book/download?bookId='+$("#bookIdHidden").val()+'&bookName='+$("#bookNamedHidden").val();
         window.location.href=fileUrl;