diff --git a/admin/static/js/app.js b/admin/static/js/app.js
index 00fbace8..d46d1cb0 100644
--- a/admin/static/js/app.js
+++ b/admin/static/js/app.js
@@ -453,6 +453,20 @@ angular.module("FICApp")
 		});
 	    }
 	};
+	$scope.deepSyncInProgress = false;
+	$scope.deepSync = function(type) {
+	    $rootScope.newYesNoBox('warning', 'Faire une synchronisation intégrale ?', '',
+				   function() {
+				       $scope.deepSyncInProgress = true;
+				       $http.post("/api/sync/deep").then(function() {
+					   $scope.deepSyncInProgress = false;
+					   $rootScope.newBox('success', 'Synchronisation intégrale terminée.', '<a href="check_import.html">Voir le rapport</a>.', 15000);
+				       }, function(response) {
+					   $scope.deepSyncInProgress = false;
+					   $rootScope.newBox('warning', 'Synchronisation intégrale terminée.', '<a href="check_import.html">Voir le rapport</a>.', 15000);
+				       });
+				   });
+	};
     })
 
     .controller("PKIController", function($scope, $rootScope, Certificate, CACertificate, Team, $location, $http) {
diff --git a/admin/static/views/settings.html b/admin/static/views/settings.html
index 3a2d1f2c..679a0ee1 100644
--- a/admin/static/views/settings.html
+++ b/admin/static/views/settings.html
@@ -119,6 +119,10 @@
     </div>
   </fieldset>
 
+  <div class="text-right">
+    <button type="submit" class="btn btn-success"><span class="glyphicon glyphicon-save" aria-hidden="true"></span> Propager ces paramètres</button>
+  </div>
+
   <hr>
 
   <div class="form-group row">
@@ -126,9 +130,10 @@
     <div class="col-sm-10">{{ configro.sync }}</div>
   </div>
 
-  <div class="text-right">
-    <button type="submit" class="btn btn-success"><span class="glyphicon glyphicon-save" aria-hidden="true"></span> Propager ces paramètres</button>
+  <div class="text-left" ng-if="configro.sync">
+    <button type="button" class="btn btn-secondary" ng-click="deepSync()" ng-disabled="deepSyncInProgress"><span class="glyphicon glyphicon-import" aria-hidden="true"></span> Synchronisation intégrale</button>
   </div>
+
 </form>
 </div>