4 files changed, 4 insertions, 4 deletions
diff --git a/tests/lib/Command/AsyncBusTest.php b/tests/lib/Command/AsyncBusTest.php
index 8f07738bec6..59a80320f41 100644
--- a/tests/lib/Command/AsyncBusTest.php
+++ b/tests/lib/Command/AsyncBusTest.php
@@ -89,7 +89,7 @@ abstract class AsyncBusTest extends TestCase {
 	 */
 	abstract protected function createBus();
 
-	public function setUp() {
+	public function setUp(): void {
 		self::$lastCommand = '';
 	}
 
diff --git a/tests/lib/Command/CronBusTest.php b/tests/lib/Command/CronBusTest.php
index 9bf53ba92d2..a28ed0fbed4 100644
--- a/tests/lib/Command/CronBusTest.php
+++ b/tests/lib/Command/CronBusTest.php
@@ -31,7 +31,7 @@ class CronBusTest extends AsyncBusTest {
 	private $jobList;
 
 
-	public function setUp() {
+	public function setUp(): void {
 		parent::setUp();
 
 		$this->jobList = new DummyJobList();
diff --git a/tests/lib/Command/Integrity/SignAppTest.php b/tests/lib/Command/Integrity/SignAppTest.php
index 2615c6afc1e..b30d465fcaa 100644
--- a/tests/lib/Command/Integrity/SignAppTest.php
+++ b/tests/lib/Command/Integrity/SignAppTest.php
@@ -39,7 +39,7 @@ class SignAppTest extends TestCase {
 	/** @var IURLGenerator|\PHPUnit_Framework_MockObject_MockObject */
 	private $urlGenerator;
 
-	public function setUp() {
+	public function setUp(): void {
 		parent::setUp();
 		$this->checker = $this->createMock(Checker::class);
 		$this->fileAccessHelper = $this->createMock(FileAccessHelper::class);
diff --git a/tests/lib/Command/Integrity/SignCoreTest.php b/tests/lib/Command/Integrity/SignCoreTest.php
index e601b4a1a90..c496b864008 100644
--- a/tests/lib/Command/Integrity/SignCoreTest.php
+++ b/tests/lib/Command/Integrity/SignCoreTest.php
@@ -36,7 +36,7 @@ class SignCoreTest extends TestCase {
 	/** @var SignCore */
 	private $signCore;
 
-	public function setUp() {
+	public function setUp(): void {
 		parent::setUp();
 		$this->checker = $this->createMock(Checker::class);
 		$this->fileAccessHelper = $this->createMock(FileAccessHelper::class);