diff --git a/includes/Core/Rest/Integration.php b/includes/Core/Rest/Integration.php
index f414b7b1..2a2e5169 100644
--- a/includes/Core/Rest/Integration.php
+++ b/includes/Core/Rest/Integration.php
@@ -149,7 +149,7 @@ public function get_response( \WP_REST_Request $request ){
             if( $notificationx ) {
                 return wp_send_json( true );
             }
-            $error['message'] = __( 'There is no notification created with this id:' . $id, 'notificationx' );
+            $error['message'] = sprintf( __( 'There is no notification created with this id: %s', 'notificationx' ), $id );
             return wp_send_json_error( $error, 401 );
 		} else {
 			$error['message'] = __( 'Error: API Key Invalid!', 'notificationx' );