diff --git a/tests/Doctrine/Tests/Models/ReadonlyProperties/SimpleBook.php b/tests/Doctrine/Tests/Models/ReadonlyProperties/SimpleBook.php
index 87e966682af..b31386c420c 100644
--- a/tests/Doctrine/Tests/Models/ReadonlyProperties/SimpleBook.php
+++ b/tests/Doctrine/Tests/Models/ReadonlyProperties/SimpleBook.php
@@ -19,7 +19,7 @@ class SimpleBook
     private readonly int $id;
 
     #[Column]
-    private readonly string $title;
+    public readonly string $title;
 
     #[ManyToOne, JoinColumn(nullable: false)]
     private readonly Author $author;
diff --git a/tests/Doctrine/Tests/ORM/Functional/ReadonlyPropertiesTest.php b/tests/Doctrine/Tests/ORM/Functional/ReadonlyPropertiesTest.php
index 17aa2306df6..1139ae2342b 100644
--- a/tests/Doctrine/Tests/ORM/Functional/ReadonlyPropertiesTest.php
+++ b/tests/Doctrine/Tests/ORM/Functional/ReadonlyPropertiesTest.php
@@ -108,4 +108,22 @@ public function testEntityWithManyToMany(): void
         self::assertEquals($bookId, $book->getId());
         self::assertSame('Jane Austen', $book->getAuthors()[0]->getName());
     }
+
+    public function testEntityProxy(): void
+    {
+        $connection = $this->_em->getConnection();
+
+        $connection->insert('author', ['name' => 'Jane Austen']);
+        $authorId = $connection->lastInsertId();
+
+        $connection->insert('simple_book', ['title' => 'Pride and Prejudice', 'author_id' => $authorId]);
+        $bookId = $connection->lastInsertId();
+
+        $proxyBook = $this->_em->getReference(SimpleBook::class, $bookId);
+
+        self::assertSame('Pride and Prejudice', $proxyBook->title);
+        self::assertEquals($bookId, $proxyBook->getId());
+        self::assertSame('Jane Austen', $proxyBook->getAuthor()->getName());
+    }
+
 }