diff --git a/src/main/java/org/ntlab/citrusserver/entities/Book.java b/src/main/java/org/ntlab/citrusserver/entities/Book.java
index dc010ff..76c3dd9 100644
--- a/src/main/java/org/ntlab/citrusserver/entities/Book.java
+++ b/src/main/java/org/ntlab/citrusserver/entities/Book.java
@@ -6,9 +6,11 @@
     private String title;
     private boolean publicity;
     private String color;
+    private String accountId;
 
 
-    public Book(Integer bookid, String title, boolean publicity, String color) {
+    public Book(String accountId, Integer bookid, String title, boolean publicity, String color) {
+        this.accountId = accountId;
         this.bookId = bookid;
 
         this.title = title;
@@ -25,4 +27,6 @@
     public String getColor() {return color;}
     public void setBookId(int id) {bookId = id;}
     public int getBookId() {return bookId;}
+    public void setAccountId(String a) {accountId = a;}
+    public String getAccountId() {return accountId;}
 }