diff --git a/tests/Fixtures/Php81TestClass.php b/tests/Fixtures/Php81TestClass.php
index a052ec443..857c7a80f 100644
--- a/tests/Fixtures/Php81TestClass.php
+++ b/tests/Fixtures/Php81TestClass.php
@@ -10,12 +10,16 @@ class Php81TestClass
     public readonly string $a;
     protected readonly string $b;
     private readonly string $c;
+    public readonly array $d;
 
     public function __construct(string $a)
     {
         $this->a = $a;
         $this->b = $a.$a;
         $this->c = $a.$a.$a;
+        $d = [$this->a, [$this->b], [[$this->c]]];
+        $d[] = &$d;
+        $this->d = $d;
     }
 
     public function typeHints(X & Y $p1)
diff --git a/tests/Parser/ParserTest.php b/tests/Parser/ParserTest.php
index fba54076c..f145e7628 100644
--- a/tests/Parser/ParserTest.php
+++ b/tests/Parser/ParserTest.php
@@ -526,6 +526,8 @@ public function testParseObjectReadonly()
         $this->assertTrue($val[1]->readonly);
         $this->assertSame('c', $val[2]->name);
         $this->assertTrue($val[2]->readonly);
+        $this->assertSame('d', $val[3]->name);
+        $this->assertTrue($val[3]->readonly);
     }
 
     /**