diff --git a/src/Utils/Reflection.php b/src/Utils/Reflection.php
index a394fc76c..60b13dda1 100644
--- a/src/Utils/Reflection.php
+++ b/src/Utils/Reflection.php
@@ -84,9 +84,7 @@ public static function getParameterDefaultValue(\ReflectionParameter $param)
 			$const = $orig = $param->getDefaultValueConstantName();
 			$pair = explode('::', $const);
 			if (isset($pair[1])) {
-				if (strtolower($pair[0]) === 'self') {
-					$pair[0] = $param->getDeclaringClass()->getName();
-				}
+				$pair[0] = self::normalizeType($pair[0], $param);
 				try {
 					$rcc = new \ReflectionClassConstant($pair[0], $pair[1]);
 				} catch (\ReflectionException $e) {
diff --git a/tests/Utils/Reflection.getParameterDefaultValue.phpt b/tests/Utils/Reflection.getParameterDefaultValue.phpt
index 8528e001b..8cd5ce437 100644
--- a/tests/Utils/Reflection.getParameterDefaultValue.phpt
+++ b/tests/Utils/Reflection.getParameterDefaultValue.phpt
@@ -31,6 +31,8 @@ Assert::same('abc', Reflection::getParameterDefaultValue(new ReflectionParameter
 
 Assert::same('abc', Reflection::getParameterDefaultValue(new ReflectionParameter(['NS\Foo', 'method'], 'h')));
 
+Assert::same('xyz', Reflection::getParameterDefaultValue(new ReflectionParameter(['NS\Foo', 'method'], 'p')));
+
 Assert::exception(function () {
 	Reflection::getParameterDefaultValue(new ReflectionParameter(['NS\Foo', 'method'], 'i'));
 }, ReflectionException::class, 'Unable to resolve constant self::UNDEFINED used as default value of $i in NS\Foo::method().');
diff --git a/tests/Utils/fixtures.reflection/defaultValue.php b/tests/Utils/fixtures.reflection/defaultValue.php
index 8360879a6..196ab13de 100644
--- a/tests/Utils/fixtures.reflection/defaultValue.php
+++ b/tests/Utils/fixtures.reflection/defaultValue.php
@@ -13,7 +13,12 @@ interface Bar
 	const DEFINED = 'xyz';
 }
 
-class Foo
+class ParentFoo
+{
+	public const PUBLIC_DEFINED = 'xyz';
+}
+
+class Foo extends ParentFoo
 {
 	public const PUBLIC_DEFINED = 'abc';
 	protected const PROTECTED_DEFINED = 'abc';
@@ -35,7 +40,8 @@ public function method(
 		$l = Undefined::ANY,
 		$m = DEFINED,
 		$n = UNDEFINED,
-		$o = NS_DEFINED
+		$o = NS_DEFINED,
+		$p = parent::PUBLIC_DEFINED
 	) {
 	}
 }