diff --git a/apps/dav/appinfo/info.xml b/apps/dav/appinfo/info.xml
index 5e0847ff5d1..2dcb986c841 100644
--- a/apps/dav/appinfo/info.xml
+++ b/apps/dav/appinfo/info.xml
@@ -28,7 +28,6 @@
 			<step>OCA\DAV\Migration\FixBirthdayCalendarComponent</step>
 			<step>OCA\DAV\Migration\CalDAVRemoveEmptyValue</step>
 			<step>OCA\DAV\Migration\BuildCalendarSearchIndex</step>
-			<step>OCA\DAV\Repair\RemoveInvalidShares</step>
 		</post-migration>
 	</repair-steps>
 
@@ -37,6 +36,7 @@
 		<command>OCA\DAV\Command\CreateCalendar</command>
 		<command>OCA\DAV\Command\SyncBirthdayCalendar</command>
 		<command>OCA\DAV\Command\SyncSystemAddressBook</command>
+		<command>OCA\DAV\Command\RemoveInvalidShares</command>
 	</commands>
 
 	<settings>
diff --git a/apps/dav/composer/composer/autoload_classmap.php b/apps/dav/composer/composer/autoload_classmap.php
index d4ef0a5337a..075ee593ad7 100644
--- a/apps/dav/composer/composer/autoload_classmap.php
+++ b/apps/dav/composer/composer/autoload_classmap.php
@@ -65,6 +65,7 @@ return array(
     'OCA\\DAV\\CardDAV\\Xml\\Groups' => $baseDir . '/../lib/CardDAV/Xml/Groups.php',
     'OCA\\DAV\\Command\\CreateAddressBook' => $baseDir . '/../lib/Command/CreateAddressBook.php',
     'OCA\\DAV\\Command\\CreateCalendar' => $baseDir . '/../lib/Command/CreateCalendar.php',
+    'OCA\\DAV\\Command\\RemoveInvalidShares' => $baseDir . '/../lib/Command/RemoveInvalidShares.php',
     'OCA\\DAV\\Command\\SyncBirthdayCalendar' => $baseDir . '/../lib/Command/SyncBirthdayCalendar.php',
     'OCA\\DAV\\Command\\SyncSystemAddressBook' => $baseDir . '/../lib/Command/SyncSystemAddressBook.php',
     'OCA\\DAV\\Comments\\CommentNode' => $baseDir . '/../lib/Comments/CommentNode.php',
@@ -142,7 +143,6 @@ return array(
     'OCA\\DAV\\Migration\\Version1004Date20170924124212' => $baseDir . '/../lib/Migration/Version1004Date20170924124212.php',
     'OCA\\DAV\\Migration\\Version1004Date20170926103422' => $baseDir . '/../lib/Migration/Version1004Date20170926103422.php',
     'OCA\\DAV\\Migration\\Version1005Date20180413093149' => $baseDir . '/../lib/Migration/Version1005Date20180413093149.php',
-    'OCA\\DAV\\Repair\\RemoveInvalidShares' => $baseDir . '/../lib/Repair/RemoveInvalidShares.php',
     'OCA\\DAV\\RootCollection' => $baseDir . '/../lib/RootCollection.php',
     'OCA\\DAV\\Server' => $baseDir . '/../lib/Server.php',
     'OCA\\DAV\\Settings\\CalDAVSettings' => $baseDir . '/../lib/Settings/CalDAVSettings.php',
diff --git a/apps/dav/composer/composer/autoload_static.php b/apps/dav/composer/composer/autoload_static.php
index afaecd28e8e..e4938350aa4 100644
--- a/apps/dav/composer/composer/autoload_static.php
+++ b/apps/dav/composer/composer/autoload_static.php
@@ -80,6 +80,7 @@ class ComposerStaticInitDAV
         'OCA\\DAV\\CardDAV\\Xml\\Groups' => __DIR__ . '/..' . '/../lib/CardDAV/Xml/Groups.php',
         'OCA\\DAV\\Command\\CreateAddressBook' => __DIR__ . '/..' . '/../lib/Command/CreateAddressBook.php',
         'OCA\\DAV\\Command\\CreateCalendar' => __DIR__ . '/..' . '/../lib/Command/CreateCalendar.php',
+        'OCA\\DAV\\Command\\RemoveInvalidShares' => __DIR__ . '/..' . '/../lib/Command/RemoveInvalidShares.php',
         'OCA\\DAV\\Command\\SyncBirthdayCalendar' => __DIR__ . '/..' . '/../lib/Command/SyncBirthdayCalendar.php',
         'OCA\\DAV\\Command\\SyncSystemAddressBook' => __DIR__ . '/..' . '/../lib/Command/SyncSystemAddressBook.php',
         'OCA\\DAV\\Comments\\CommentNode' => __DIR__ . '/..' . '/../lib/Comments/CommentNode.php',
@@ -157,7 +158,6 @@ class ComposerStaticInitDAV
         'OCA\\DAV\\Migration\\Version1004Date20170924124212' => __DIR__ . '/..' . '/../lib/Migration/Version1004Date20170924124212.php',
         'OCA\\DAV\\Migration\\Version1004Date20170926103422' => __DIR__ . '/..' . '/../lib/Migration/Version1004Date20170926103422.php',
         'OCA\\DAV\\Migration\\Version1005Date20180413093149' => __DIR__ . '/..' . '/../lib/Migration/Version1005Date20180413093149.php',
-        'OCA\\DAV\\Repair\\RemoveInvalidShares' => __DIR__ . '/..' . '/../lib/Repair/RemoveInvalidShares.php',
         'OCA\\DAV\\RootCollection' => __DIR__ . '/..' . '/../lib/RootCollection.php',
         'OCA\\DAV\\Server' => __DIR__ . '/..' . '/../lib/Server.php',
         'OCA\\DAV\\Settings\\CalDAVSettings' => __DIR__ . '/..' . '/../lib/Settings/CalDAVSettings.php',
diff --git a/apps/dav/lib/Repair/RemoveInvalidShares.php b/apps/dav/lib/Command/RemoveInvalidShares.php
similarity index 73%
rename from apps/dav/lib/Repair/RemoveInvalidShares.php
rename to apps/dav/lib/Command/RemoveInvalidShares.php
index b69f918a576..12a5ee43d47 100644
--- a/apps/dav/lib/Repair/RemoveInvalidShares.php
+++ b/apps/dav/lib/Command/RemoveInvalidShares.php
@@ -1,4 +1,5 @@
 <?php
+declare(strict_types=1);
 /**
  * @author Thomas Müller <thomas.mueller@tmit.eu>
  *
@@ -19,58 +20,40 @@
  *
  */
 
-namespace OCA\DAV\Repair;
+namespace OCA\DAV\Command;
 
 use OCA\DAV\Connector\Sabre\Principal;
 use OCP\IDBConnection;
-use OCP\ILogger;
-use OCP\Migration\IOutput;
-use OCP\Migration\IRepairStep;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
 
 /**
  * Class RemoveInvalidShares - removes shared calendars and addressbook which
  * have no matching principal. Happened because of a bug in the calendar app.
- *
- * @package OCA\DAV\Repair
  */
-class RemoveInvalidShares implements IRepairStep {
+class RemoveInvalidShares extends Command {
 
 	/** @var IDBConnection */
 	private $connection;
 	/** @var Principal */
 	private $principalBackend;
 
-	/**
-	 * RemoveInvalidShares constructor.
-	 *
-	 * @param IDBConnection $connection
-	 * @param Principal $principalBackend
-	 */
 	public function __construct(IDBConnection $connection,
 								Principal $principalBackend) {
+		parent::__construct();
+
 		$this->connection = $connection;
 		$this->principalBackend = $principalBackend;
 	}
 
-	/**
-	 * Returns the step's name
-	 *
-	 * @return string
-	 * @since 9.1.0
-	 */
-	public function getName() {
-		return 'Remove invalid calendar and addressbook shares';
+	protected function configure() {
+		$this
+			->setName('dav:remove-invalid-shares')
+			->setDescription('Remove invalid dav shares');
 	}
 
-	/**
-	 * Run repair step.
-	 * Must throw exception on error.
-	 *
-	 * @param IOutput $output
-	 * @throws \Exception in case of failure
-	 * @since 9.1.0
-	 */
-	public function run(IOutput $output) {
+	protected function execute(InputInterface $input, OutputInterface $output) {
 		$query = $this->connection->getQueryBuilder();
 		$result = $query->selectDistinct('principaluri')
 			->from('dav_shares')
@@ -80,7 +63,6 @@ class RemoveInvalidShares implements IRepairStep {
 			$principaluri = $row['principaluri'];
 			$p = $this->principalBackend->getPrincipalByPath($principaluri);
 			if ($p === null) {
-				$output->info(" ... for principal '$principaluri'");
 				$this->deleteSharesForPrincipal($principaluri);
 			}
 		}
diff --git a/apps/dav/tests/unit/Repair/RemoveInvalidSharesTest.php b/apps/dav/tests/unit/Command/RemoveInvalidSharesTest.php
similarity index 86%
rename from apps/dav/tests/unit/Repair/RemoveInvalidSharesTest.php
rename to apps/dav/tests/unit/Command/RemoveInvalidSharesTest.php
index 14553740f38..2574e4d0aec 100644
--- a/apps/dav/tests/unit/Repair/RemoveInvalidSharesTest.php
+++ b/apps/dav/tests/unit/Command/RemoveInvalidSharesTest.php
@@ -20,12 +20,14 @@
  */
 
 
-namespace OCA\DAV\Tests\Unit\Repair;
+namespace OCA\DAV\Tests\Unit\Command;
 
 
 use OCA\DAV\Connector\Sabre\Principal;
-use OCA\DAV\Repair\RemoveInvalidShares;
+use OCA\DAV\Command\RemoveInvalidShares;
 use OCP\Migration\IOutput;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
 use Test\TestCase;
 
 /**
@@ -57,8 +59,7 @@ class RemoveInvalidSharesTest extends TestCase {
 		$output = $this->createMock(IOutput::class);
 
 		$repair = new RemoveInvalidShares($db, $principal);
-		$this->assertEquals("Remove invalid calendar and addressbook shares", $repair->getName());
-		$repair->run($output);
+		$this->invokePrivate($repair, 'run', [$this->createMock(InputInterface::class), $this->createMock(OutputInterface::class)]);
 
 		$query = $db->getQueryBuilder();
 		$result = $query->select('*')->from('dav_shares')
diff --git a/lib/private/Repair.php b/lib/private/Repair.php
index 8746f1e6f27..27746993443 100644
--- a/lib/private/Repair.php
+++ b/lib/private/Repair.php
@@ -47,6 +47,8 @@ use OC\Repair\RepairMimeTypes;
 use OC\Repair\RepairInvalidShares;
 use OC\Template\JSCombiner;
 use OC\Template\SCSSCacher;
+use OCA\DAV\Connector\Sabre\Principal;
+use OCA\DAV\Repair\RemoveInvalidShares;
 use OCP\AppFramework\QueryException;
 use OCP\Migration\IOutput;
 use OCP\Migration\IRepairStep;
@@ -146,7 +148,7 @@ class Repair implements IOutput{
 	 */
 	public static function getExpensiveRepairSteps() {
 		return [
-			new OldGroupMembershipShares(\OC::$server->getDatabaseConnection(), \OC::$server->getGroupManager())
+			new OldGroupMembershipShares(\OC::$server->getDatabaseConnection(), \OC::$server->getGroupManager()),
 		];
 	}