diff --git a/app/pdfs/pdf/invoice.rb b/app/pdfs/pdf/invoice.rb
index dfc1c699d..b7720dcd1 100644
--- a/app/pdfs/pdf/invoice.rb
+++ b/app/pdfs/pdf/invoice.rb
@@ -3,6 +3,7 @@ module PDF
   class Invoice < Prawn::Document
     require 'stringio'
     include ActionView::Helpers::NumberHelper
+    include ApplicationHelper
 
     def initialize(invoice)
       super(:margin => 70)
@@ -147,15 +148,21 @@ module PDF
           if cp.type == 'percent_off'
             discount = total_calc  * cp.percent_off / 100.0
           elsif cp.type == 'amount_off'
-            discount = cp.amount_off
+            discount = cp.amount_off / 100.00
           else
             raise InvalidCouponError
           end
 
           total_calc = total_calc - discount
 
+          # discount textual description
+          literal_discount = cp.percent_off
+          if cp.type == 'amount_off'
+            literal_discount = number_to_currency(discount)
+          end
+
           # add a row for the coupon
-          data += [ [I18n.t('invoices.coupon_CODE_discount_of_PERCENT', CODE: cp.code, PERCENT: cp.percent_off), number_to_currency(-discount)] ]
+          data += [ [_t('invoices.coupon_CODE_discount_of_DISCOUNT', {CODE: cp.code, DISCOUNT: literal_discount, TYPE: cp.type}), number_to_currency(-discount)] ]
         end
 
         # total verification
diff --git a/config/locales/en.yml b/config/locales/en.yml
index cb4689a00..f30febc5e 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -87,7 +87,7 @@ en:
       one: "One %{NAME} ticket"
       other: "%{count} %{NAME} tickets"
     reservation_other: "Reservation (other)"
-    coupon_CODE_discount_of_PERCENT: "Coupon %{CODE}: discount of %{PERCENT}%"
+    coupon_CODE_discount_of_DISCOUNT: "Coupon {CODE}: discount of {DISCOUNT}{TYPE, select, percent_off{%} other{}}"  # messageFormat interpolation
     total_including_all_taxes: "Total incl. all taxes"
     including_VAT_RATE: "Including VAT %{RATE}%"
     including_total_excluding_taxes: "Including Total excl. taxes"
diff --git a/config/locales/fr.yml b/config/locales/fr.yml
index bef046965..68bb7179c 100644
--- a/config/locales/fr.yml
+++ b/config/locales/fr.yml
@@ -87,7 +87,7 @@ fr:
       one: "Une place %{NAME}"
       other: "%{count} places %{NAME}"
     reservation_other: "Réservation (autre)"
-    coupon_CODE_discount_of_PERCENT: "Code %{CODE} : remise de %{PERCENT} %"
+    coupon_CODE_discount_of_DISCOUNT: "Code {CODE} : remise de {DISCOUNT} {TYPE, select, percent_off{%} other{}}"  # messageFormat interpolation
     total_including_all_taxes: "Total TTC"
     including_VAT_RATE: "Dont TVA %{RATE}%"
     including_total_excluding_taxes: "Dont total HT"
diff --git a/config/locales/mails.fr.yml b/config/locales/mails.fr.yml
index 14d1ee941..a34aff9c6 100644
--- a/config/locales/mails.fr.yml
+++ b/config/locales/mails.fr.yml
@@ -279,7 +279,7 @@ fr:
       body:
         enjoy_a_discount_of_PERCENT_with_code_CODE: "Bénéficiez d'une remise de %{PERCENT} % sur tout le site en utilisant le code promo %{CODE}."
         enjoy_a_discount_of_AMOUNT_with_code_CODE: "Bénéficiez d'une remise de %{AMOUNT} sur tout le site en utilisant le code promo %{CODE}."
-        this_coupon_is_valid_USAGE_times_until_DATE_for_all_your_purchases: "Ce code promo est valable {USAGE, plural, =1{une seule fois} other{plusieurs fois}} : pour tous vos achats {TYPE, select, amount_off{dont le montant est au moins de celui du code promo} other{}}, dès maintenant {DATE, select, NO-DATE{et sans limitation de durée} other{et jusqu'au {DATE}}}."
+        this_coupon_is_valid_USAGE_times_until_DATE_for_all_your_purchases: "Ce code promo est valable {USAGE, plural, =1{une seule fois} other{plusieurs fois}} : pour tous vos achats {TYPE, select, amount_off{dont le montant est au moins égal à celui du code promo} other{}}, dès maintenant {DATE, select, NO-DATE{et sans limitation de durée} other{et jusqu'au {DATE}}}."
 
     shared:
       hello: "Bonjour %{user_name}"