diff --git a/tests/lib/Files/ViewTest.php b/tests/lib/Files/ViewTest.php
index f18af484f872836a2bc0147de6e02497a733f642..90decd20a991c718d723ea843d4678f64bf1fbe6 100644
--- a/tests/lib/Files/ViewTest.php
+++ b/tests/lib/Files/ViewTest.php
@@ -1163,7 +1163,7 @@ class ViewTest extends \Test\TestCase {
 		/** @var \PHPUnit\Framework\MockObject\MockObject|Temporary $storage2 */
 		$storage2 = $this->getMockBuilder(TemporaryNoCross::class)
 			->setConstructorArgs([[]])
-			->setMethods(['fopen'])
+			->setMethods(['fopen', 'writeStream'])
 			->getMock();
 
 		$storage2->method('writeStream')