diff --git a/api/src/Entity/User.php b/api/src/Entity/User.php
index 9498fdce7..691d02fc0 100644
--- a/api/src/Entity/User.php
+++ b/api/src/Entity/User.php
@@ -52,7 +52,7 @@
  *     "reference": "exact"
  * })
  *
- * @UniqueEntity("reference")
+ * @UniqueEntity("email")
  *
  * @ORM\Table(name="`user`")
  */