diff --git a/odolbeau/phone-number-bundle/3.0/post-install.txt b/odolbeau/phone-number-bundle/3.0/post-install.txt
index a71c1801c..8748c5621 100644
--- a/odolbeau/phone-number-bundle/3.0/post-install.txt
+++ b/odolbeau/phone-number-bundle/3.0/post-install.txt
@@ -5,5 +5,5 @@
 <bg=green;fg=white> The Doctrine configuration has been already done.</>
 <bg=green;fg=white> You now can use `phone_number` as an ORM-Type: </>
 
-  /** @ORM\Column(type="phone_number") */
-  private $phoneNumber;
+  #[ORM\Column(type: 'phone_number')]
+  private ?PhoneNumber $phoneNumber = null;