diff --git a/src/PhpParser/Node/Manipulator/ChildAndParentClassManipulator.php b/src/PhpParser/Node/Manipulator/ChildAndParentClassManipulator.php
index 20cf988da25..e08f8cf92bc 100644
--- a/src/PhpParser/Node/Manipulator/ChildAndParentClassManipulator.php
+++ b/src/PhpParser/Node/Manipulator/ChildAndParentClassManipulator.php
@@ -18,7 +18,7 @@ final class ChildAndParentClassManipulator
     /**
      * @var string
      */
-    private const __CONSTRUCT = '__construct';
+    private const CONSTRUCT = '__construct';
 
     /**
      * @var NodeFactory
@@ -71,7 +71,7 @@ final class ChildAndParentClassManipulator
         }
 
         // complete parent call for __construct()
-        if ($parentClassName !== '' && method_exists($parentClassName, self::__CONSTRUCT)) {
+        if ($parentClassName !== '' && method_exists($parentClassName, self::CONSTRUCT)) {
             $parentConstructCallNode = $this->nodeFactory->createParentConstructWithParams([]);
             $classMethod->stmts[] = new Expression($parentConstructCallNode);
         }
@@ -87,55 +87,49 @@ final class ChildAndParentClassManipulator
         $childClassNodes = $this->classLikeParsedNodesFinder->findChildrenOfClass($className);
 
         foreach ($childClassNodes as $childClassNode) {
-            if ($childClassNode->getMethod(self::__CONSTRUCT) === null) {
+            $childConstructorClassMethod = $childClassNode->getMethod(self::CONSTRUCT);
+            if ($childConstructorClassMethod === null) {
                 continue;
             }
 
-            /** @var ClassMethod $childClassConstructorMethodNode */
-            $childClassConstructorMethodNode = $childClassNode->getMethod(self::__CONSTRUCT);
-
             // replicate parent parameters
-            $childClassConstructorMethodNode->params = array_merge(
+            $childConstructorClassMethod->params = array_merge(
                 $constructorClassMethod->params,
-                $childClassConstructorMethodNode->params
+                $childConstructorClassMethod->params
             );
 
             $parentConstructCallNode = $this->nodeFactory->createParentConstructWithParams(
                 $constructorClassMethod->params
             );
 
-            $childClassConstructorMethodNode->stmts = array_merge(
+            $childConstructorClassMethod->stmts = array_merge(
                 [new Expression($parentConstructCallNode)],
-                (array) $childClassConstructorMethodNode->stmts
+                (array) $childConstructorClassMethod->stmts
             );
         }
     }
 
     private function completeParentConstructorBasedOnParentNode(Class_ $parentClassNode, ClassMethod $classMethod): void
     {
-        // iterate up?
         $firstParentConstructMethodNode = $this->findFirstParentConstructor($parentClassNode);
         if ($firstParentConstructMethodNode === null) {
             return;
         }
 
-        if ($firstParentConstructMethodNode->params === []) {
-            return;
-        }
-
         // replicate parent parameters
         $classMethod->params = array_merge($firstParentConstructMethodNode->params, $classMethod->params);
 
         $parentConstructCallNode = $this->nodeFactory->createParentConstructWithParams(
             $firstParentConstructMethodNode->params
         );
+
         $classMethod->stmts[] = new Expression($parentConstructCallNode);
     }
 
     private function findFirstParentConstructor(Class_ $classNode): ?ClassMethod
     {
         while ($classNode !== null) {
-            $constructMethodNode = $classNode->getMethod(self::__CONSTRUCT);
+            $constructMethodNode = $classNode->getMethod(self::CONSTRUCT);
             if ($constructMethodNode !== null) {
                 return $constructMethodNode;
             }
diff --git a/src/PhpParser/Node/Manipulator/ClassDependencyManipulator.php b/src/PhpParser/Node/Manipulator/ClassDependencyManipulator.php
index 7bdb8ab5fdb..b5ffa4a707b 100644
--- a/src/PhpParser/Node/Manipulator/ClassDependencyManipulator.php
+++ b/src/PhpParser/Node/Manipulator/ClassDependencyManipulator.php
@@ -77,7 +77,7 @@ final class ClassDependencyManipulator
     ): void {
         $constructorMethod = $classNode->getMethod(self::CONSTRUCTOR);
 
-        /** @var ClassMethod $constructorMethod */
+        /** @var ClassMethod|null $constructorMethod */
         if ($constructorMethod !== null) {
             $this->classMethodAssignManipulator->addParameterAndAssignToMethod(
                 $constructorMethod,
diff --git a/tests/Rector/Architecture/DependencyInjection/AnnotatedPropertyInjectToConstructorInjectionRector/Fixture/fixture6.php.inc b/tests/Rector/Architecture/DependencyInjection/AnnotatedPropertyInjectToConstructorInjectionRector/Fixture/add_parent_construct.php.inc
similarity index 70%
rename from tests/Rector/Architecture/DependencyInjection/AnnotatedPropertyInjectToConstructorInjectionRector/Fixture/fixture6.php.inc
rename to tests/Rector/Architecture/DependencyInjection/AnnotatedPropertyInjectToConstructorInjectionRector/Fixture/add_parent_construct.php.inc
index eabb88cd9c4..ff1ec5ee473 100644
--- a/tests/Rector/Architecture/DependencyInjection/AnnotatedPropertyInjectToConstructorInjectionRector/Fixture/fixture6.php.inc
+++ b/tests/Rector/Architecture/DependencyInjection/AnnotatedPropertyInjectToConstructorInjectionRector/Fixture/add_parent_construct.php.inc
@@ -4,7 +4,7 @@ namespace Rector\Core\Tests\Rector\Architecture\DependencyInjection\AnnotatedPro
 
 use Rector\Core\Tests\Rector\Architecture\DependencyInjection\AnnotatedPropertyInjectToConstructorInjectionRector\Source\SomeProductWithParent;
 
-class ClassWithInjects6
+class ClassWithParentWithConstructor extends SomeClassWithParent
 {
     /**
      * @var SomeProductWithParent
@@ -13,6 +13,16 @@ class ClassWithInjects6
     protected $property;
 }
 
+class SomeClassWithParent
+{
+    private $value;
+
+    public function __construct()
+    {
+        $this->value = '123';
+    }
+}
+
 ?>
 -----
 <?php
@@ -21,7 +31,7 @@ namespace Rector\Core\Tests\Rector\Architecture\DependencyInjection\AnnotatedPro
 
 use Rector\Core\Tests\Rector\Architecture\DependencyInjection\AnnotatedPropertyInjectToConstructorInjectionRector\Source\SomeProductWithParent;
 
-class ClassWithInjects6
+class ClassWithParentWithConstructor extends SomeClassWithParent
 {
     /**
      * @var SomeProductWithParent
@@ -30,6 +40,17 @@ class ClassWithInjects6
     public function __construct(\Rector\Core\Tests\Rector\Architecture\DependencyInjection\AnnotatedPropertyInjectToConstructorInjectionRector\Source\SomeProductWithParent $property)
     {
         $this->property = $property;
+        parent::__construct();
+    }
+}
+
+class SomeClassWithParent
+{
+    private $value;
+
+    public function __construct()
+    {
+        $this->value = '123';
     }
 }