diff --git a/src/views/app.html b/src/views/app.html
index e9ac0bc5e..6f4001682 100644
--- a/src/views/app.html
+++ b/src/views/app.html
@@ -438,7 +438,7 @@
       <div class="progress progress-striped active animateMeOpacity" ng-show="app.taskId" style="height: 10px; flex-grow: 1;">
         <div class="progress-bar progress-bar-success" role="progressbar" style="width: {{ app.taskProgress }}%"></div>
       </div>
-      <div ng-show="app.taskMinutesActive >= 5" class="text-danger hand" style="margin: 0 4px;" ng-click="" uib-tooltip="Cancel Task"><i class="fas fa-times"></i></div>
+      <div ng-show="app.taskMinutesActive >= 5" class="text-danger hand" style="margin: 0 4px;" ng-click="stopAppTask(app.taskId)" uib-tooltip="Cancel Task"><i class="fas fa-times"></i></div>
     </div>
   </div>
 
diff --git a/src/views/app.js b/src/views/app.js
index be0b7274d..9ae555112 100644
--- a/src/views/app.js
+++ b/src/views/app.js
@@ -117,6 +117,13 @@ angular.module('Application').controller('AppController', ['$scope', '$location'
         $scope.view = view;
     };
 
+    $scope.stopAppTask = function (taskId) {
+        Client.stopTask(taskId, function (error) {
+            // we can ignore a call trying to cancel an already done task
+            if (error && error.statusCode !== 409) Client.error(error);
+        });
+    },
+
     $scope.postInstallMessage = {
         confirmed: false,
         openApp: false,