diff --git a/src/Uplink/Resources/Service.php b/src/Uplink/Resources/Service.php
index 204dbc63..d7fb6feb 100644
--- a/src/Uplink/Resources/Service.php
+++ b/src/Uplink/Resources/Service.php
@@ -11,7 +11,7 @@ class Service extends Resource {
 	/**
 	 * @inheritDoc
 	 */
-	public static function register( $slug, $name, $version, $path, $class, string $license_class = null, bool $oauth = false) {
+	public static function register( $slug, $name, $version, $path, $class, string $license_class = null, $oauth = false) {
 		return parent::register_resource( static::class, $slug, $name, $version, $path, $class, $license_class, $oauth );
 	}
 }
diff --git a/tests/wpunit/RegisterTest.php b/tests/wpunit/RegisterTest.php
index ce8fd15c..e663ccd4 100644
--- a/tests/wpunit/RegisterTest.php
+++ b/tests/wpunit/RegisterTest.php
@@ -3,10 +3,12 @@
 namespace wpunit;
 
 use StellarWP\Uplink\Config;
+use StellarWP\Uplink\Resources\Resource;
 use StellarWP\Uplink\Tests\UplinkTestCase;
 use StellarWP\Uplink\Register;
 use StellarWP\Uplink\Resources\Collection;
 use StellarWP\Uplink\Tests\TestUtils;
+use StellarWP\Uplink\Uplink;
 
 class RegisterTest extends UplinkTestCase {
 
@@ -38,11 +40,67 @@ public function it_should_register_resource( $resource ) {
 			$resource['path'],
 			$resource['class'],
 			null,
-			$is_oauth,
+			$is_oauth
 		);
 
 		$this->assertTrue( $collection->offsetExists( $resource['slug'] ) );
 
 		$this->assertEquals( $is_oauth, $collection->get( $resource['slug'] )->is_using_oauth() );
 	}
+
+	/**
+	 * @test
+	 */
+	public function is_should_register_service_with_oauth_using_int():void{
+		$collection = Config::get_container()->get( Collection::class );
+
+		$this->assertFalse( $collection->offsetExists( 'service-with-oauth-int' ) );
+
+		Register::service(
+			'service-with-oauth-int',
+			'Service With OAuth Int',
+			'1.0.10',
+			$this->get_base() . '/service-with-oauth-int.php',
+			Uplink::class,
+			Uplink::class,
+			Resource::OAUTH_REQUIRED
+		);
+
+		$this->assertTrue( $collection->offsetExists( 'service-with-oauth-int' ) );
+		$this->assertTrue( $collection->get( 'service-with-oauth-int' )->is_using_oauth() );
+		$this->assertFalse( $collection->get( 'service-with-oauth-int' )->oauth_requires_license_key() );
+	}
+
+	public function is_should_register_service_with_oauth_and_license_key_using_int():void{
+		$collection = Config::get_container()->get( Collection::class );
+
+		$this->assertFalse( $collection->offsetExists( 'service-with-oauth-int-2' ) );
+		$this->assertFalse( $collection->offsetExists( 'service-with-oauth-int-3' ) );
+
+		// Include the Resource::OAUTH_REQUIRES_LICENSE_KEY flag.
+		Register::service(
+			'service-with-oauth-int-2',
+			'Service With OAuth Int 2',
+			'1.0.10',
+			$this->get_base() . '/service-with-oauth-int-2.php',
+			Uplink::class,
+			Uplink::class,
+			Resource::OAUTH_REQUIRED | Resource::OAUTH_REQUIRES_LICENSE_KEY
+		);
+
+		// Omit the Resource::OAUTH_REQUIRED flag, it should be implied.
+		Register::service(
+			'service-with-oauth-int-3',
+			'Service With OAuth Int 3',
+			'1.0.10',
+			$this->get_base() . '/service-with-oauth-int-2.php',
+			Uplink::class,
+			Uplink::class,
+			Resource::OAUTH_REQUIRES_LICENSE_KEY
+		);
+
+		$this->assertTrue( $collection->offsetExists( 'service-with-oauth-int-3' ) );
+		$this->assertTrue( $collection->get( 'service-with-oauth-int-3' )->is_using_oauth() );
+		$this->assertTrue( $collection->get( 'service-with-oauth-int-3' )->oauth_requires_license_key() );
+	}
 }