diff --git a/app/frontend/src/javascript/directives/settings/number-setting.js b/app/frontend/src/javascript/directives/settings/number-setting.js
index 4f9d3e030..76e08edd7 100644
--- a/app/frontend/src/javascript/directives/settings/number-setting.js
+++ b/app/frontend/src/javascript/directives/settings/number-setting.js
@@ -10,6 +10,7 @@ Application.Directives.directive('numberSetting', ['Setting', 'growl', '_t',
         faIcon: '@',
         helperText: '@',
         min: '@',
+        step: '@',
         required: '<'
       },
       templateUrl: '/admin/settings/number.html',
@@ -17,7 +18,7 @@ Application.Directives.directive('numberSetting', ['Setting', 'growl', '_t',
         // The setting
         $scope.setting = {
           name: $scope.name,
-          value: parseInt($scope.settings[$scope.name], 10)
+          value: parseFloat($scope.settings[$scope.name])
         };
 
         /**
diff --git a/app/frontend/src/javascript/router.js b/app/frontend/src/javascript/router.js
index 2cccf050e..711b11295 100644
--- a/app/frontend/src/javascript/router.js
+++ b/app/frontend/src/javascript/router.js
@@ -1078,7 +1078,8 @@ angular.module('application.router', ['ui.router'])
                      "'fablab_name', 'name_genre', 'reminder_enable', 'plans_module', 'confirmation_required', " +
                      "'reminder_delay', 'visibility_yearly', 'visibility_others', 'wallet_module', 'trainings_module', " +
                      "'display_name_enable', 'machines_sort_by', 'fab_analytics', 'statistics_module', 'address_required', " +
-                     "'link_name', 'home_content', 'home_css', 'phone_required', 'upcoming_events_shown', 'public_agenda_module']"
+                     "'link_name', 'home_content', 'home_css', 'phone_required', 'upcoming_events_shown', 'public_agenda_module'," +
+                     "'renew_pack_threshold']"
             }).$promise;
           }],
           privacyDraftsPromise: ['Setting', function (Setting) { return Setting.get({ name: 'privacy_draft', history: true }).$promise; }],
diff --git a/app/frontend/templates/admin/settings/number.html b/app/frontend/templates/admin/settings/number.html
index 46b1474d3..833b8dbf1 100644
--- a/app/frontend/templates/admin/settings/number.html
+++ b/app/frontend/templates/admin/settings/number.html
@@ -5,7 +5,7 @@
           <div class="input-group-addon">
               <i class="fa {{faIcon}}"></i>
           </div>
-          <input type="number" class="form-control" id="setting-{{setting.name}}" ng-model="setting.value" min="{{min}}" ng-required="true">
+          <input type="number" class="form-control" id="setting-{{setting.name}}" ng-model="setting.value" min="{{min}}" step="{{step}}" ng-required="true">
       </div>
       <span class="help-block text-info text-xs" ng-show="helperText">
           <i class="fa fa-lightbulb-o"></i> {{ helperText | translate }}
diff --git a/app/frontend/templates/admin/settings/reservations.html b/app/frontend/templates/admin/settings/reservations.html
index 70597a1b8..ad2a10ec1 100644
--- a/app/frontend/templates/admin/settings/reservations.html
+++ b/app/frontend/templates/admin/settings/reservations.html
@@ -157,5 +157,17 @@
                          label="app.admin.settings.show_event"
                          classes="m-l"></boolean-setting>
       </div>
+      <div class="row">
+          <h3 class="m-l" translate>{{ 'app.admin.settings.display_invite_to_renew_pack' }}</h3>
+          <p class="alert alert-warning m-h-md" ng-bind-html="'app.admin.settings.packs_threshold_info_html' | translate"></p>
+        <number-setting name="renew_pack_threshold"
+                        settings="allSettings"
+                        label="app.admin.settings.renew_pack_threshold"
+                        classes="col-md-4"
+                        fa-icon="fa-sliders-h"
+                        min="0"
+                        step="0.01">
+        </number-setting>
+      </div>
     </div>
 </div>
diff --git a/app/services/prepaid_pack_service.rb b/app/services/prepaid_pack_service.rb
index 44f3b2e07..29efbc1b3 100644
--- a/app/services/prepaid_pack_service.rb
+++ b/app/services/prepaid_pack_service.rb
@@ -23,7 +23,7 @@ class PrepaidPackService
               .includes(:prepaid_pack)
               .references(:prepaid_packs)
               .where('statistic_profile_id = ?', user.statistic_profile.id)
-              .where('expires_at < ?', DateTime.current)
+              .where('expires_at > ?', DateTime.current)
               .where('prepaid_packs.priceable_id = ?', priceable.id)
               .where('prepaid_packs.priceable_type = ?', priceable.class.name)
 
diff --git a/config/locales/app.admin.en.yml b/config/locales/app.admin.en.yml
index b5cfdfa33..76639b349 100644
--- a/config/locales/app.admin.en.yml
+++ b/config/locales/app.admin.en.yml
@@ -1205,6 +1205,9 @@ en:
         public_agenda_module: "public agenda module"
         statistics_module: "statistics module"
         upcoming_events_shown: "display limit for upcoming events"
+        display_invite_to_renew_pack: "Display the invite to renew prepaid-packs"
+        packs_threshold_info_html: "You can define under how many hours the user will be invited to buy a prepaid-pack, if his stock of prepaid hours in under this threshold.<br/>You can set a <strong>number of hours</strong> (<em>eg. 5</em>) or a <strong>percentage</strong> of his current pack pack (<em>eg. 0.05 means 5%</em>)."
+        renew_pack_threshold: "threshold for packs renewal"
         general:
           general: "General"
           title: "Title"
diff --git a/config/locales/app.admin.fr.yml b/config/locales/app.admin.fr.yml
index a47752f66..cad85b338 100644
--- a/config/locales/app.admin.fr.yml
+++ b/config/locales/app.admin.fr.yml
@@ -1170,6 +1170,9 @@ fr:
         public_agenda_module: "module d'agenda public"
         statistics_module: "module de statistiques"
         upcoming_events_shown: "la limite d'affichage des événements à venir"
+        display_invite_to_renew_pack: "Display the invite to renew prepaid-packs"
+        packs_threshold_info_html: "You can define under how many hours the user will be invited to buy a prepaid-pack, if his stock of prepaid hours in under this threshold.<br/>You can set a <strong>number of hours</strong> (<em>eg. 5</em>) or a <strong>percentage</strong> of his current pack pack (<em>eg. 0.05 means 5%</em>)."
+        renew_pack_threshold: "Threshold for packs renewal"
         general:
           general: "Général"
           title: "Titre"