diff --git a/app/assets/javascripts/controllers/trainings.coffee.erb b/app/assets/javascripts/controllers/trainings.coffee.erb
index 4f73efe9a..e7e955351 100644
--- a/app/assets/javascripts/controllers/trainings.coffee.erb
+++ b/app/assets/javascripts/controllers/trainings.coffee.erb
@@ -400,6 +400,7 @@ Application.Controllers.controller "ReserveTrainingController", ["$scope", "$sta
     if $scope.ctrl.member
       # reserve a training if this training will not be reserved and is not about to move and not is completed
       if !event.is_reserved && !$scope.slotToModify && !event.is_completed
+        $scope.coupon.applied = null
         if event != $scope.selectedTraining
           $scope.selectedTraining = event
           $scope.selectedTraining.offered = false
diff --git a/app/assets/javascripts/directives/coupon.coffee.erb b/app/assets/javascripts/directives/coupon.coffee.erb
index 531116100..2d1aa5812 100644
--- a/app/assets/javascripts/directives/coupon.coffee.erb
+++ b/app/assets/javascripts/directives/coupon.coffee.erb
@@ -5,6 +5,7 @@ Application.Directives.directive 'coupon', [ 'Coupon', 'growl', '_t', (Coupon, g
       show: '='
       coupon: '='
       userId: '@'
+      hasSelectSlot: '='
     templateUrl: '<%= asset_path "shared/_coupon.html" %>'
     link: ($scope, element, attributes) ->
 
@@ -18,6 +19,11 @@ Application.Directives.directive 'coupon', [ 'Coupon', 'growl', '_t', (Coupon, g
       # Binding for the code inputed
       $scope.couponCode = null
 
+      $scope.$watch 'hasSelectSlot', (newValue) ->
+        unless newValue
+          $scope.coupon = null
+          $scope.couponCode = null
+          $scope.code.input = false
 
 
       ##
diff --git a/app/assets/templates/machines/reserve.html.erb b/app/assets/templates/machines/reserve.html.erb
index f80ffb700..246df7ba5 100644
--- a/app/assets/templates/machines/reserve.html.erb
+++ b/app/assets/templates/machines/reserve.html.erb
@@ -78,7 +78,7 @@
           <div class="clear"><a class="pull-right m-b-sm text-u-l ng-scope m-r-sm" href="#" ng-click="removeMachineSlot(machineSlot, $event)" ng-if="machineSlot.isValid" translate>{{ 'remove_this_slot' }}</a></div>
         </div>
 
-        <coupon show="machineSlotsValid() && (!plansAreShown || selectedPlan)" coupon="coupon.applied" user-id="{{ctrl.member.id}}"></coupon>
+        <coupon show="machineSlotsValid() && (!plansAreShown || selectedPlan)" coupon="coupon.applied" has-select-slot="machineSlotsValid()" user-id="{{ctrl.member.id}}"></coupon>
 
         <span ng-hide="fablabWithoutPlans">
           <div ng-if="machineSlotsValid() && !ctrl.member.subscribed_plan" ng-show="!plansAreShown">
diff --git a/app/assets/templates/shared/_coupon.html.erb b/app/assets/templates/shared/_coupon.html.erb
index d6661868b..7e00a29f5 100644
--- a/app/assets/templates/shared/_coupon.html.erb
+++ b/app/assets/templates/shared/_coupon.html.erb
@@ -1,5 +1,5 @@
 <div class="form-group m-b-lg" ng-show="show">
-  <a ng-click="code. input = true" ng-hide="code.input" class="b-b" translate>{{ 'i_have_a_coupon' }}</a>
+  <a ng-click="code.input = true" ng-hide="code.input" class="b-b" translate>{{ 'i_have_a_coupon' }}</a>
 
   <div ng-show="code.input">
     <label for="coupon_code" translate>{{ 'code_' }}</label>
@@ -18,4 +18,4 @@
       </span>
     </div>
   </div>
-</div>
\ No newline at end of file
+</div>
diff --git a/app/assets/templates/trainings/reserve.html.erb b/app/assets/templates/trainings/reserve.html.erb
index 5f03078f4..34adf87e6 100644
--- a/app/assets/templates/trainings/reserve.html.erb
+++ b/app/assets/templates/trainings/reserve.html.erb
@@ -82,7 +82,7 @@
           <a class="pull-right m-t-xs text-u-l" href="#" ng-click="removeTraining($event)" ng-if="trainingIsValid" translate>{{ 'remove_this_slot' }}</a>
         </div>
 
-        <coupon show="trainingIsValid && (!plansIsShow || selectedPlan)" coupon="coupon.applied" user-id="{{ctrl.member.id}}"></coupon>
+        <coupon show="trainingIsValid && (!plansIsShow || selectedPlan)" coupon="coupon.applied" has-select-slot="trainingIsValid" user-id="{{ctrl.member.id}}"></coupon>
 
         <span ng-hide="fablabWithoutPlans">
           <div ng-if="trainingIsValid && !ctrl.member.subscribed_plan" ng-show="!plansIsShow">