diff --git a/config/locales/app.admin.es.yml b/config/locales/app.admin.es.yml
index b8c691751..d35852c39 100644
--- a/config/locales/app.admin.es.yml
+++ b/config/locales/app.admin.es.yml
@@ -19,7 +19,7 @@ es:
         availabilities: "Disponibilidades"
         availabilities_notice: "Exportar a un libro de trabajo de Excel cada ranura disponible para reserva, y su ratio de ocupación."
         ongoing_reservations: "Reservas en curso"
-        without_reservation: "Without reservation"
+        without_reservation: "Sin reserva"
         confirmation_required: "Confirmación requerida"
         do_you_really_want_to_cancel_the_USER_s_reservation_the_DATE_at_TIME_concerning_RESERVATION: "Realmente quieres cancelar la reserva del {USER}, en {DATE} a las {TIME}, respecto {RESERVATION}?"
         reservation_was_successfully_cancelled: "La reserva fué cancelada con éxito."
@@ -193,7 +193,7 @@ es:
         booking: "Booking"
         sold_out: "Sold out"
         cancelled: "Cancelled"
-        without_reservation: "Without reservation"
+        without_reservation: "Sin reserva"
         free_admission: "Free admission"
         view_reservations: "Ver reservas"
         load_the_next_events: "Load the next events..."