diff --git a/src/Tribe/REST/V1/Endpoints/Single_Attendee.php b/src/Tribe/REST/V1/Endpoints/Single_Attendee.php
index f18b1d2601..bbae0ee12e 100644
--- a/src/Tribe/REST/V1/Endpoints/Single_Attendee.php
+++ b/src/Tribe/REST/V1/Endpoints/Single_Attendee.php
@@ -359,7 +359,7 @@ public function validate_attendee_status( $data, $provider ) {
 				$error_message  = sprintf(
 					// Translators: %s - List of valid statuses.
 					__( 'Supported statuses for this attendee are: %s', 'event-tickets' ),
-					implode( $statuses, ' | ' )
+					implode( ' | ', $statuses )
 				);
 				return new WP_Error( 'invalid-attendee-status', $error_message, [ 'status' => 400 ] );
 			}