diff --git a/src/Entity/Collection.php b/src/Entity/Collection.php
index f0c9be6..d3b0351 100644
--- a/src/Entity/Collection.php
+++ b/src/Entity/Collection.php
@@ -79,7 +79,7 @@ class Collection
     #[ORM\JoinTable(name: 'rel_riferimento_collezione')]
     #[ORM\JoinColumn(name: 'Collezione_id_coll', referencedColumnName: 'id')]
     #[ORM\InverseJoinColumn(name: 'Bibliografia_id_bib', referencedColumnName: 'id')]
-    #[ORM\ManyToMany(targetEntity: Bibliography::class)]
+    #[ORM\ManyToMany(targetEntity: Bibliography::class, inversedBy: 'collection')]
     private DoctrineCollection $bibliographies;
 
     public function getId(): ?int