diff --git a/tests/PHPStan/Analyser/NodeScopeResolverTest.php b/tests/PHPStan/Analyser/NodeScopeResolverTest.php
index e0a8eaa2ccb..8806119792f 100644
--- a/tests/PHPStan/Analyser/NodeScopeResolverTest.php
+++ b/tests/PHPStan/Analyser/NodeScopeResolverTest.php
@@ -1136,6 +1136,7 @@ public function dataFileAsserts(): iterable
 		yield from $this->gatherAssertTypes(__DIR__ . '/data/imagick-pixel.php');
 		yield from $this->gatherAssertTypes(__DIR__ . '/../Rules/Arrays/data/bug-8467a.php');
 		yield from $this->gatherAssertTypes(__DIR__ . '/data/bug-8467b.php');
+		yield from $this->gatherAssertTypes(__DIR__ . '/data/bug-8442.php');
 	}
 
 	/**
diff --git a/tests/PHPStan/Analyser/data/bug-8442.php b/tests/PHPStan/Analyser/data/bug-8442.php
new file mode 100644
index 00000000000..a6dd50bad77
--- /dev/null
+++ b/tests/PHPStan/Analyser/data/bug-8442.php
@@ -0,0 +1,8 @@
+<?php declare(strict_types = 1);
+
+namespace Bug8442;
+
+use function PHPStan\Testing\assertType;
+
+assertType('false', \DateInterval::createFromDateString('foo'));
+assertType('DateInterval', \DateInterval::createFromDateString('1 Day'));