diff --git a/src/extractors/np4.js b/src/extractors/np4.js
index 821b0ab..27ccf08 100644
--- a/src/extractors/np4.js
+++ b/src/extractors/np4.js
@@ -1,70 +1,70 @@
 /*
    Copyright (c) 2019 Volker Krause <vkrause@kde.org>
 
    This library is free software; you can redistribute it and/or modify it
    under the terms of the GNU Library General Public License as published by
    the Free Software Foundation; either version 2 of the License, or (at your
    option) any later version.
 
    This library is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
    License for more details.
 
    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to the
    Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
    02110-1301, USA.
 */
 
 function parseEvent(event)
 {
     var res;
     if (event.summary.match(/(?:Flight|Flug)/i)) {
         res = JsonLd.newFlightReservation();
 
         // force UTC, otherwise we lose the timezone due to JS converting to the local TZ
         res.reservationFor.departureTime = event.dtStart.toJSON();
         res.reservationFor.arrivalTime = event.dtEnd.toJSON();
 
         var flight = event.description.match(/(?:Flight no|Flugnr.):\s*(\w{2}) (\d{1,4})\n?.*(?:by|von): (.+)\n/);
         res.reservationFor.airline.name = flight[3];
         res.reservationFor.airline.iataCode = flight[1];
         res.reservationFor.flightNumber = flight[2];
 
         var from = event.description.match(/(?:From|Von):\s+(.*)\n/);
         res.reservationFor.departureAirport.name = from[1];
 
         var to = event.description.match(/(?:To|Nach):\s+(.*)\n/);
         res.reservationFor.arrivalAirport.name = to[1];
 
     } else if (event.summary.startsWith("Mietwagen")) {
         res = JsonLd.newObject("RentalCarReservation");
         res.reservationFor = JsonLd.newObject("RentalCar");
         res.reservationFor.rentalCompany = JsonLd.newObject("Organization");
 
         res.pickupLocation = JsonLd.newObject("Place");
         var pickup = event.description.match(/Abgabeort:\s*(.*)\n/);
         res.pickupLocation.name = pickup[1]; // TODO split address
 
         res.dropoffLocation = JsonLd.newObject("Place");
         var dropoff = event.description.match(/Annahmeort:\s*(.*)\n/);
         res.dropoffLocation.name = dropoff[1]; // TODO dito
 
         // force UTC, otherwise we lose the timezone due to JS converting to the local TZ
         res.pickupTime = event.dtStart.toJSON();
         res.dropoffTime = event.dtEnd.toJSON();
 
         var provider = event.description.match(/Mietwagenfirma:\s*(.*)\n/);
         res.reservationFor.rentalCompany.name = provider[1];
         var model = event.description.match(/Wagenkl.\/Typ:\s*(.*)\n/);
         res.reservationFor.name = model[1];
     } else {
         return null;
     }
 
-    var refNum = event.description.match(/(?:Reservation code|Buchungsnummer|Buchungscode):\s(\w+)\n/);
+    var refNum = event.description.match(/(?:Reservation code|Buchungsnummer|Buchungscode):\s(.+)\n/);
     res.reservationNumber = refNum[1];
 
     return res;
 }