diff --git a/admin/api/settings.go b/admin/api/settings.go
index 31bc7446..40afef56 100644
--- a/admin/api/settings.go
+++ b/admin/api/settings.go
@@ -22,7 +22,7 @@ func getSettings(_ httprouter.Params, body []byte) (interface{}, error) {
 	if settings.ExistsSettings(path.Join(TeamsDir, settings.SettingsFile)) {
 		return settings.ReadSettings(path.Join(TeamsDir, settings.SettingsFile))
 	} else {
-		return settings.FICSettings{time.Unix(0,0), time.Unix(0,0), fic.FirstBlood, fic.SubmissionCostBase, false, false, false, true, true}, nil
+		return settings.FICSettings{time.Unix(0,0), time.Unix(0,0), time.Unix(0,0), fic.FirstBlood, fic.SubmissionCostBase, false, false, false, true, true}, nil
 	}
 }
 
diff --git a/admin/static/js/app.js b/admin/static/js/app.js
index c7a12993..11a429e7 100644
--- a/admin/static/js/app.js
+++ b/admin/static/js/app.js
@@ -228,6 +228,10 @@ angular.module("FICApp")
 		$location.url("/");
 	    });
 	}
+	$scope.regenerate = function() {
+	    this.config.generation = (new Date()).toISOString();
+	    $scope.saveSettings();
+	}
 	$scope.launchChallenge = function() {
 	    var ts = Date.now() - Date.now() % 60000;
 	    var d = new Date(ts + 120000);
diff --git a/admin/static/views/settings.html b/admin/static/views/settings.html
index fe15a1dc..97aebc06 100644
--- a/admin/static/views/settings.html
+++ b/admin/static/views/settings.html
@@ -1,7 +1,9 @@
-<h2>Paramètres</h2>
+<h2>Paramètres<a ng-click="regenerate()" class="pull-right btn btn-info" role="button"><span class="glyphicon glyphicon-refresh" aria-hidden="true"></span> Regénérer les fichiers statiques</a></h2>
 
 <form ng-submit="saveSettings()" class="form-horizontal well">
 
+  <input type="hidden" class="form-control" id="lastRegeneration" ng-model="config.generation">
+
   <div class="form-group">
     <label for="startTime" class="col-sm-2 control-label">Début du challenge</label>
     <div class="col-sm-8">
diff --git a/backend/main.go b/backend/main.go
index 37bd9a92..e33e44d8 100644
--- a/backend/main.go
+++ b/backend/main.go
@@ -43,8 +43,12 @@ func watchsubdir(watcher *fsnotify.Watcher, pathname string) error {
 	}
 }
 
+var lastRegeneration time.Time
+
 func reloadSettings(config settings.FICSettings) {
-	if fic.PartialValidation != config.PartialValidation || fic.UnlockedChallenges != !config.EnableExerciceDepend || fic.FirstBlood != config.FirstBlood || fic.SubmissionCostBase != config.SubmissionCostBase {
+	if lastRegeneration != config.Generation || fic.PartialValidation != config.PartialValidation || fic.UnlockedChallenges != !config.EnableExerciceDepend || fic.FirstBlood != config.FirstBlood || fic.SubmissionCostBase != config.SubmissionCostBase {
+		lastRegeneration = config.Generation
+
 		fic.PartialValidation = config.PartialValidation
 		fic.UnlockedChallenges = !config.EnableExerciceDepend
 
diff --git a/settings/settings.go b/settings/settings.go
index 6775c03c..d327663c 100644
--- a/settings/settings.go
+++ b/settings/settings.go
@@ -15,6 +15,7 @@ const SettingsFile = "settings.json"
 type FICSettings struct {
 	Start			time.Time `json:"start"`
 	End			time.Time `json:"end"`
+	Generation		time.Time `json:"generation"`
 
 	FirstBlood		float64   `json:"firstBlood"`
 	SubmissionCostBase	float64   `json:"submissionCostBase"`