diff --git a/lib/private/Migration/BackgroundRepair.php b/lib/private/Migration/BackgroundRepair.php
index a873d23e7b..7ef90301cf 100644
--- a/lib/private/Migration/BackgroundRepair.php
+++ b/lib/private/Migration/BackgroundRepair.php
@@ -47,10 +47,7 @@ class BackgroundRepair extends TimedJob {
 	/** @var EventDispatcherInterface */
 	private $dispatcher;
 
-	/**
-	 * @param EventDispatcherInterface $dispatcher
-	 */
-	public function setDispatcher(EventDispatcherInterface $dispatcher): void {
+	public function __construct(EventDispatcherInterface $dispatcher) {
 		$this->dispatcher = $dispatcher;
 	}
 
diff --git a/tests/lib/Migration/BackgroundRepairTest.php b/tests/lib/Migration/BackgroundRepairTest.php
index 180ce72d31..df81fd4577 100644
--- a/tests/lib/Migration/BackgroundRepairTest.php
+++ b/tests/lib/Migration/BackgroundRepairTest.php
@@ -77,12 +77,11 @@ class BackgroundRepairTest extends TestCase {
 		$this->logger = $this->getMockBuilder(ILogger::class)
 			->disableOriginalConstructor()
 			->getMock();
+		$this->dispatcher = $this->createMock(EventDispatcherInterface::class);
 		$this->job = $this->getMockBuilder(BackgroundRepair::class)
+			->setConstructorArgs([$this->dispatcher])
 			->setMethods(['loadApp'])
 			->getMock();
-
-		$this->dispatcher = $this->createMock(EventDispatcherInterface::class);
-		$this->job->setDispatcher($this->dispatcher);
 	}
 
 	public function testNoArguments() {