diff --git a/src/PhpDoc/TypeNodeResolver.php b/src/PhpDoc/TypeNodeResolver.php
index 8af74bf9264..7a42ff77292 100644
--- a/src/PhpDoc/TypeNodeResolver.php
+++ b/src/PhpDoc/TypeNodeResolver.php
@@ -483,8 +483,9 @@ private function resolveIdentifierTypeNode(IdentifierTypeNode $typeNode, NameSco
 				case 'parent':
 					if ($this->getReflectionProvider()->hasClass($nameScope->getClassName())) {
 						$classReflection = $this->getReflectionProvider()->getClass($nameScope->getClassName());
-						if ($classReflection->getParentClass() !== null) {
-							return new ObjectType($classReflection->getParentClass()->getName());
+						$parentClass = $classReflection->getNativeReflection()->getParentClass();
+						if ($parentClass !== false) {
+							return new ObjectType($parentClass->getName());
 						}
 					}
 
diff --git a/tests/PHPStan/Analyser/AnalyserIntegrationTest.php b/tests/PHPStan/Analyser/AnalyserIntegrationTest.php
index 8a169e150e1..460810673a8 100644
--- a/tests/PHPStan/Analyser/AnalyserIntegrationTest.php
+++ b/tests/PHPStan/Analyser/AnalyserIntegrationTest.php
@@ -1522,6 +1522,13 @@ public function testBug8835(): void
 		$this->assertNoErrors($errors);
 	}
 
+	public function testBug14439(): void
+	{
+		// endless loop crash with @extends parent<T>
+		$errors = $this->runAnalyse(__DIR__ . '/data/bug-14439.php');
+		$this->assertNoErrors($errors);
+	}
+
 	/**
 	 * @param string[]|null $allAnalysedFiles
 	 * @return list<Error>
diff --git a/tests/PHPStan/Analyser/data/bug-14439.php b/tests/PHPStan/Analyser/data/bug-14439.php
new file mode 100644
index 00000000000..3430abbf00c
--- /dev/null
+++ b/tests/PHPStan/Analyser/data/bug-14439.php
@@ -0,0 +1,26 @@
+<?php declare(strict_types = 1);
+
+namespace Bug14439;
+
+/**
+ * @template T
+ */
+abstract class AbstractBar
+{
+}
+
+/**
+ * @template T
+ * @extends parent<T>
+ */
+abstract class AbstractFoo extends AbstractBar
+{
+}
+
+/**
+ * @template T of int
+ * @extends parent<T>
+ */
+class Foo extends AbstractFoo
+{
+}