diff --git a/src/main/java/org/ntlab/citrusserver/repositories/BookManager.java b/src/main/java/org/ntlab/citrusserver/repositories/BookManager.java
index fad0974..af3fb10 100644
--- a/src/main/java/org/ntlab/citrusserver/repositories/BookManager.java
+++ b/src/main/java/org/ntlab/citrusserver/repositories/BookManager.java
@@ -27,8 +27,8 @@
     public int createBook(String accountId, String title, String color, Boolean publicity)
     {
         Account account = accountManager.getAccount(accountId); //アカウントの取得
-        Book book = new Book(title, publicity, color); //本の初期化
         int newBookId = account.getNewBookId(); //新たに生成されたIdを取得（作成数もここで加算している）
+        Book book = new Book(newBookId, title, publicity, color); //本の初期化
         booksMap.get(accountId).put(newBookId, book); //ブックに追加
         return newBookId;
     }