diff --git a/stubs/runtime/Attribute.php b/stubs/runtime/Attribute.php
index e41f42cfc4..49c794a4ab 100644
--- a/stubs/runtime/Attribute.php
+++ b/stubs/runtime/Attribute.php
@@ -67,3 +67,10 @@ final class ReturnTypeWillChange
 	{
 	}
 }
+
+if (\PHP_VERSION_ID < 80200 && !class_exists('AllowDynamicProperties', false)) {
+	#[Attribute(Attribute::TARGET_CLASS)]
+	final class AllowDynamicProperties
+	{
+	}
+}
diff --git a/tests/PHPStan/Rules/Classes/ClassAttributesRuleTest.php b/tests/PHPStan/Rules/Classes/ClassAttributesRuleTest.php
index 90e53baa30..e66e813b02 100644
--- a/tests/PHPStan/Rules/Classes/ClassAttributesRuleTest.php
+++ b/tests/PHPStan/Rules/Classes/ClassAttributesRuleTest.php
@@ -137,4 +137,13 @@ public function testBug7171(): void
 		]);
 	}
 
+	public function testAllowDynamicPropertiesAttribute(): void
+	{
+		if (PHP_VERSION_ID >= 80200) {
+			$this->markTestSkipped('Test requires PHP < 8.2.');
+		}
+
+		$this->analyse([__DIR__ . '/data/allow-dynamic-properties-attribute.php'], []);
+	}
+
 }
diff --git a/tests/PHPStan/Rules/Classes/data/allow-dynamic-properties-attribute.php b/tests/PHPStan/Rules/Classes/data/allow-dynamic-properties-attribute.php
new file mode 100644
index 0000000000..e17ad37e5b
--- /dev/null
+++ b/tests/PHPStan/Rules/Classes/data/allow-dynamic-properties-attribute.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace AllowDynamicPropertiesAttribute;
+
+#[\AllowDynamicProperties]
+class Foo
+{
+
+}