diff --git a/lib/Command/MigrateU2F.php b/lib/Command/MigrateU2F.php
index 59b005be..14106797 100644
--- a/lib/Command/MigrateU2F.php
+++ b/lib/Command/MigrateU2F.php
@@ -82,7 +82,7 @@ public function __construct(U2FMigrator $migrator,
 	}
 
 	protected function configure(): void {
-		$this->setName("twofactor_webauthn:migrate-u2f");
+		$this->setName('twofactor_webauthn:migrate-u2f');
 		$this->addOption(self::OPTION_ALL);
 		$this->addOption(self::OPTION_DELETE_U2F_REGISTRATIONS);
 		$this->addArgument(self::ARGUMENT_USER_ID, InputArgument::OPTIONAL | InputArgument::IS_ARRAY);
diff --git a/lib/Provider/WebAuthnProvider.php b/lib/Provider/WebAuthnProvider.php
index 04fe83f6..75b48a88 100644
--- a/lib/Provider/WebAuthnProvider.php
+++ b/lib/Provider/WebAuthnProvider.php
@@ -64,7 +64,7 @@ class WebAuthnProvider implements IProvider, IProvidesIcons, IProvidesPersonalSe
 	/** @var IRequest */
 	private $request;
 
-	/** @var ContainerInterface  */
+	/** @var ContainerInterface */
 	private $container;
 
 	public function __construct(IL10N $l10n,
diff --git a/tests/Unit/Controller/SettingsControllerTest.php b/tests/Unit/Controller/SettingsControllerTest.php
index f8f854af..5a8e01da 100644
--- a/tests/Unit/Controller/SettingsControllerTest.php
+++ b/tests/Unit/Controller/SettingsControllerTest.php
@@ -92,11 +92,11 @@ public function testFinishRegister(): void {
 			->method('finishRegister')
 			->with(
 				self::equalTo($user),
-				self::equalTo("my key"),
+				self::equalTo('my key'),
 				self::equalTo($data))
 			->willReturn([]);
 
-		$resp = $this->controller->finishRegister("my key", $data);
+		$resp = $this->controller->finishRegister('my key', $data);
 
 		self::assertEquals(new JSONResponse([]), $resp);
 	}