diff --git a/hotel_calendar/static/src/js/views/calendar/hotel_calendar_renderer.js b/hotel_calendar/static/src/js/views/calendar/hotel_calendar_renderer.js
index 58a379a0b..74f1d7de5 100644
--- a/hotel_calendar/static/src/js/views/calendar/hotel_calendar_renderer.js
+++ b/hotel_calendar/static/src/js/views/calendar/hotel_calendar_renderer.js
@@ -227,6 +227,10 @@ var HotelCalendarView = AbstractRenderer.extend({
                   ['partner_id.vat', 'ilike', tsearch],
                   ['partner_id.email', 'ilike', tsearch],
                   ['partner_id.phone', 'ilike', tsearch]);
+      if (type === 'invoice') {
+        domain.splice(0, 0, '|');
+        domain.push(['number', 'ilike', tsearch]);
+      }
       return domain;
     },
 
diff --git a/hotel_calendar_channel_connector/static/src/js/views/hotel_calendar_renderer.js b/hotel_calendar_channel_connector/static/src/js/views/hotel_calendar_renderer.js
index 5bf257cc2..9c5c1b84d 100644
--- a/hotel_calendar_channel_connector/static/src/js/views/hotel_calendar_renderer.js
+++ b/hotel_calendar_channel_connector/static/src/js/views/hotel_calendar_renderer.js
@@ -40,7 +40,7 @@ odoo.define('hotel_calendar_channel_connector.PMSHotelCalendarRenderer', functio
     },
 
     _generate_search_domain: function(tsearch, type) {
-      var domain = this._super(tsearch);
+      var domain = this._super(tsearch, type);
 
       if (type === 'book') {
         domain.splice(0, 0, '|');