diff --git a/src/PhpGenerator/Factory.php b/src/PhpGenerator/Factory.php
index 9ab18d92..9509e763 100644
--- a/src/PhpGenerator/Factory.php
+++ b/src/PhpGenerator/Factory.php
@@ -218,8 +218,6 @@ public function fromParameterReflection(\ReflectionParameter $from): Parameter
 			} else {
 				$param->setDefaultValue($from->getDefaultValue());
 			}
-
-			$param->setNullable($param->isNullable() && $param->getDefaultValue() !== null);
 		}
 
 		$param->setAttributes($this->getAttributes($from));
diff --git a/tests/PhpGenerator/expected/ClassType.from.bodies.expect b/tests/PhpGenerator/expected/ClassType.from.bodies.expect
index 1a593c65..c33ef3d5 100644
--- a/tests/PhpGenerator/expected/ClassType.from.bodies.expect
+++ b/tests/PhpGenerator/expected/ClassType.from.bodies.expect
@@ -38,7 +38,7 @@ abstract class Class7
 	}
 
 
-	public function resolving($a = Abc\a\FOO, self $b = null, $c = self::FOO)
+	public function resolving($a = Abc\a\FOO, ?self $b = null, $c = self::FOO)
 	{
 		// constants
 		echo FOO;
diff --git a/tests/PhpGenerator/expected/ClassType.from.expect b/tests/PhpGenerator/expected/ClassType.from.expect
index a6f42d2a..2ed08063 100644
--- a/tests/PhpGenerator/expected/ClassType.from.expect
+++ b/tests/PhpGenerator/expected/ClassType.from.expect
@@ -55,7 +55,7 @@ class Class2 extends Class1 implements Interface2
 	}
 
 
-	private function func4(array $a = [], Class2 $b = null, $c = Unknown::ABC)
+	private function func4(array $a = [], ?Class2 $b = null, $c = Unknown::ABC)
 	{
 	}
 
@@ -77,7 +77,7 @@ class Class4
 
 class Class5
 {
-	public function func1(\A $a, ?\B $b, \C $c = null, \D $d = null, ?int $i = 1, ?array $arr = [])
+	public function func1(\A $a, ?\B $b, ?\C $c = null, ?\D $d = null, ?int $i = 1, ?array $arr = [])
 	{
 	}