diff --git a/includes/activitypub/transformer/location/class-the-events-calendar.php b/includes/activitypub/transformer/location/class-the-events-calendar.php
index f40c286..2c5977a 100644
--- a/includes/activitypub/transformer/location/class-the-events-calendar.php
+++ b/includes/activitypub/transformer/location/class-the-events-calendar.php
@@ -47,7 +47,7 @@ final class The_Events_Calendar extends Post {
 	 *
 	 * @return array|string|null The place/venue if one is set.
 	 */
-	public function get_address(): mixed {
+	public function get_address() {
 		$address = array();
 
 		if ( ! empty( $this->wp_object->country ) ) {
diff --git a/tests/test-class-plugin-the-events-calendar.php b/tests/test-class-plugin-the-events-calendar.php
index ebb3639..a0479bd 100644
--- a/tests/test-class-plugin-the-events-calendar.php
+++ b/tests/test-class-plugin-the-events-calendar.php
@@ -192,6 +192,7 @@ class Test_The_Events_Calendar extends WP_UnitTestCase {
 			->create();
 
 		// Call the transformer.
+
 		$event_array = \Activitypub\Transformer\Factory::get_transformer( $wp_object )->to_object()->to_array();
 
 		// Check that the event ActivityStreams representation contains everything as expected.