diff --git a/src/ORMInvalidArgumentException.php b/src/ORMInvalidArgumentException.php
index 2181d207c28..b2db07ff43b 100644
--- a/src/ORMInvalidArgumentException.php
+++ b/src/ORMInvalidArgumentException.php
@@ -309,7 +309,7 @@ private static function newEntityFoundThroughRelationshipMessage(array $associat
             . ' configured to cascade persist operations for entity: ' . self::objToStr($entity) . '.'
             . ' To solve this issue: Either explicitly call EntityManager#persist()'
             . ' on this unknown entity or configure cascade persist'
-            . ' this association in the mapping for example @ManyToOne(..,cascade={"persist"}).'
+            . ' this association in the mapping for example #[ORM\ManyToOne(..., cascade: [\'persist\'])].'
             . (method_exists($entity, '__toString')
                 ? ''
                 : ' If you cannot find out which entity causes the problem implement \''
diff --git a/tests/Tests/ORM/ORMInvalidArgumentExceptionTest.php b/tests/Tests/ORM/ORMInvalidArgumentExceptionTest.php
index e878bc067b6..6af40bd0d74 100644
--- a/tests/Tests/ORM/ORMInvalidArgumentExceptionTest.php
+++ b/tests/Tests/ORM/ORMInvalidArgumentExceptionTest.php
@@ -85,7 +85,7 @@ public function __toString(): string
                 . 'persist operations for entity: stdClass@' . spl_object_id($entity1)
                 . '. To solve this issue: Either explicitly call EntityManager#persist() on this unknown entity '
                 . 'or configure cascade persist this association in the mapping for example '
-                . '@ManyToOne(..,cascade={"persist"}). If you cannot find out which entity causes the problem '
+                . '#[ORM\ManyToOne(..., cascade: [\'persist\'])]. If you cannot find out which entity causes the problem '
                 . 'implement \'baz1#__toString()\' to get a clue.',
             ],
             'two entities found' => [
@@ -104,13 +104,13 @@ public function __toString(): string
                 . 'cascade persist operations for entity: stdClass@' . spl_object_id($entity1) . '. '
                 . 'To solve this issue: Either explicitly call EntityManager#persist() on this unknown entity '
                 . 'or configure cascade persist this association in the mapping for example '
-                . '@ManyToOne(..,cascade={"persist"}). If you cannot find out which entity causes the problem '
+                . '#[ORM\ManyToOne(..., cascade: [\'persist\'])]. If you cannot find out which entity causes the problem '
                 . 'implement \'baz1#__toString()\' to get a clue.' . "\n"
                 . ' * A new entity was found through the relationship \'foo2#bar2\' that was not configured to '
                 . 'cascade persist operations for entity: stdClass@' . spl_object_id($entity2) . '. To solve '
                 . 'this issue: Either explicitly call EntityManager#persist() on this unknown entity or '
                 . 'configure cascade persist this association in the mapping for example '
-                . '@ManyToOne(..,cascade={"persist"}). If you cannot find out which entity causes the problem '
+                . '#[ORM\ManyToOne(..., cascade: [\'persist\'])]. If you cannot find out which entity causes the problem '
                 . 'implement \'baz2#__toString()\' to get a clue.',
             ],
             'two entities found, one is stringable' => [
@@ -124,7 +124,7 @@ public function __toString(): string
                 . 'persist operations for entity: ThisIsAStringRepresentationOfEntity3'
                 . '. To solve this issue: Either explicitly call EntityManager#persist() on this unknown entity '
                 . 'or configure cascade persist this association in the mapping for example '
-                . '@ManyToOne(..,cascade={"persist"}).',
+                . '#[ORM\ManyToOne(..., cascade: [\'persist\'])].',
             ],
         ];
     }