diff --git a/src/AppBundle/Entity/User.php b/src/AppBundle/Entity/User.php
index 1927d76..cb43de3 100644
--- a/src/AppBundle/Entity/User.php
+++ b/src/AppBundle/Entity/User.php
@@ -72,7 +72,7 @@ class User
     /**
      * @var string
      *
-     * @ORM\Column(type="string", name="Reference", unique=true, options={"collation":"latin1_bin"})
+     * @ORM\Column(type="string", name="Reference", unique=true, options={"collation":"latin1_general_ci"})
      *
      * @Expose()
      */
diff --git a/src/AppBundle/Entity/UserGroup.php b/src/AppBundle/Entity/UserGroup.php
index 2eb98f8..781ec91 100644
--- a/src/AppBundle/Entity/UserGroup.php
+++ b/src/AppBundle/Entity/UserGroup.php
@@ -83,7 +83,7 @@ class UserGroup
     /**
      * @var string
      *
-     * @ORM\Column(name="Reference", type="string", unique=true, nullable=true, options={"collation":"latin1_bin"})
+     * @ORM\Column(name="Reference", type="string", unique=true, nullable=true, options={"collation":"latin1_general_ci"})
      * @Required()
      * @Expose()
      */