diff --git a/app/assets/javascripts/controllers/events.coffee.erb b/app/assets/javascripts/controllers/events.coffee.erb
index 63311860d..399cb8983 100644
--- a/app/assets/javascripts/controllers/events.coffee.erb
+++ b/app/assets/javascripts/controllers/events.coffee.erb
@@ -154,6 +154,7 @@ Application.Controllers.controller "ShowEventController", ["$scope", "$state", "
     tickets: {}
     toReserve: false
     amountTotal : 0
+    totalSeats: 0
 
   ## Discount coupon to apply to the basket, if any
   $scope.coupon =
@@ -185,6 +186,8 @@ Application.Controllers.controller "ShowEventController", ["$scope", "$state", "
     remain = $scope.event.nb_free_places - $scope.reserve.nbReservePlaces
     for ticket of $scope.reserve.tickets
       remain -= $scope.reserve.tickets[ticket]
+    # we store the total number of seats booked, this is used to know if the 'pay' button must be shown
+    $scope.reserve.totalSeats = $scope.event.nb_free_places - remain
 
     # update the availables seats for full price tickets
     fullPriceRemains = $scope.reserve.nbReservePlaces + remain
@@ -512,6 +515,7 @@ Application.Controllers.controller "ShowEventController", ["$scope", "$state", "
         tickets: {}
         toReserve: false
         amountTotal : 0
+        totalSeats: 0
 
       for evt_px_cat in $scope.event.prices
         $scope.reserve.nbPlaces[evt_px_cat.id] = [0..$scope.event.nb_free_places]
diff --git a/app/assets/templates/events/show.html.erb b/app/assets/templates/events/show.html.erb
index 790e2f962..9c3c81c8e 100644
--- a/app/assets/templates/events/show.html.erb
+++ b/app/assets/templates/events/show.html.erb
@@ -164,23 +164,20 @@
 
           <button class="btn btn-warning-full rounded btn-block text-sm" ng-click="reserveEvent()" ng-show="event.nb_free_places > 0 && !reserve.toReserve">{{ 'book' | translate }}</button>
 
-          <coupon show="(reserve.nbReservePlaces > 0 || reserve.nbReserveReducedPlaces > 0) && ctrl.member" coupon="coupon.applied" user-id="{{ctrl.member.id}}"></coupon>
+          <coupon show="reserve.totalSeats > 0 && ctrl.member" coupon="coupon.applied" user-id="{{ctrl.member.id}}"></coupon>
         </div>
       </div>
 
       <div class="panel-footer no-padder ng-scope" ng-if="event.amount">
-        <button class="btn btn-valid btn-info btn-block p-l btn-lg text-u-c r-b text-base" ng-click="payEvent()" ng-if="reserve.nbReservePlaces > 0 || reserve.nbReserveReducedPlaces > 0">{{ 'confirm_and_pay' | translate }} {{reserve.amountTotal | currency}}</button>
+        <button class="btn btn-valid btn-info btn-block p-l btn-lg text-u-c r-b text-base" ng-click="payEvent()" ng-if="reserve.totalSeats > 0">{{ 'confirm_and_pay' | translate }} {{reserve.amountTotal | currency}}</button>
       </div>
 
       <div class="panel-footer no-padder ng-scope" ng-if="event.amount == 0">
-        <button class="btn btn-valid btn-info btn-block p-l btn-lg text-u-c r-b text-base" ng-click="validReserveEvent()" ng-if="reserve.nbReservePlaces > 0 || reserve.nbReserveReducedPlaces > 0" ng-disabled="attempting">{{ 'confirm' | translate }}</button>
+        <button class="btn btn-valid btn-info btn-block p-l btn-lg text-u-c r-b text-base" ng-click="validReserveEvent()" ng-if="reserve.totalSeats > 0" ng-disabled="attempting">{{ 'confirm' | translate }}</button>
       </div>
 
     </section>
 
-     <div ng-if="event.reduced_amount" ng-bind-html="reducedAmountAlert" class="alert alert-warning text-sm m" role="alert">
-     </div>
-
   </div>
 
 </div>