diff --git a/src/AppBundle/Entity/Book.php b/src/AppBundle/Entity/Book.php
index a505c10..e64cfee 100644
--- a/src/AppBundle/Entity/Book.php
+++ b/src/AppBundle/Entity/Book.php
@@ -51,22 +51,6 @@ class Book
      *     targetEntity="Category",
      *     cascade={"persist"}
      * )
-     * @ORM\JoinTable(
-     *     name="book_has_category",
-     *     joinColumns={
-     *         @ORM\JoinColumn(
-     *             name="book_id",
-     *             referencedColumnName="id"
-     *         )
-     *     },
-     *     inverseJoinColumns={
-     *         @ORM\JoinColumn(
-     *             name="category_id",
-     *             referencedColumnName="id",
-     *             unique=true
-     *         )
-     *     }
-     *  )
      */
     private $categories;
 
diff --git a/src/AppBundle/Entity/Category.php b/src/AppBundle/Entity/Category.php
index ab6e723..4c14d60 100644
--- a/src/AppBundle/Entity/Category.php
+++ b/src/AppBundle/Entity/Category.php
@@ -32,7 +32,7 @@ class Category
     /**
      * @var \Doctrine\Common\Collections\Collection
      *
-     * @ORM\OneToMany(
+     * @ORM\ManyToMany(
      *     targetEntity="Book",
      *     mappedBy="categories",
      *     cascade={"persist"}