diff --git a/tests/Tests/ORM/Functional/Ticket/GH11341Test.php b/tests/Tests/ORM/Functional/Ticket/GH11341Test.php
index 4031dedf205..16853418ccf 100644
--- a/tests/Tests/ORM/Functional/Ticket/GH11341Test.php
+++ b/tests/Tests/ORM/Functional/Ticket/GH11341Test.php
@@ -109,8 +109,8 @@ class StringAsIntBarEntity extends StringAsIntBaseClass
 #[ORM\InheritanceType('SINGLE_TABLE')]
 #[ORM\DiscriminatorColumn(name: 'type', type: 'string')]
 #[ORM\DiscriminatorMap([
-    1 => StringFooEntity::class,
-    2 => StringBarEntity::class,
+    '1' => StringFooEntity::class,
+    '2' => StringBarEntity::class,
 ])]
 class StringBaseClass
 {