diff --git a/src/applications/project/chart/PhabricatorProjectBurndownChartEngine.php b/src/applications/project/chart/PhabricatorProjectBurndownChartEngine.php
index 1296f2eec8..16760d515f 100644
--- a/src/applications/project/chart/PhabricatorProjectBurndownChartEngine.php
+++ b/src/applications/project/chart/PhabricatorProjectBurndownChartEngine.php
@@ -1,107 +1,111 @@
 <?php
 
 final class PhabricatorProjectBurndownChartEngine
   extends PhabricatorChartEngine {
 
   const CHARTENGINEKEY = 'project.burndown';
 
   public function setProjects(array $projects) {
     assert_instances_of($projects, 'PhabricatorProject');
     $project_phids = mpull($projects, 'getPHID');
     return $this->setEngineParameter('projectPHIDs', $project_phids);
   }
 
   protected function newChart(PhabricatorFactChart $chart, array $map) {
     $viewer = $this->getViewer();
 
     $map = $map + array(
       'projectPHIDs' => array(),
     );
 
     if ($map['projectPHIDs']) {
       $projects = id(new PhabricatorProjectQuery())
         ->setViewer($viewer)
         ->withPHIDs($map['projectPHIDs'])
         ->execute();
       $project_phids = mpull($projects, 'getPHID');
     } else {
       $project_phids = array();
     }
 
     $functions = array();
     if ($project_phids) {
       $open_function = $this->newFunction(
         array(
           'accumulate',
           array(
             'sum',
             $this->newFactSum(
               'tasks.open-count.create.project', $project_phids),
             $this->newFactSum(
               'tasks.open-count.status.project', $project_phids),
             $this->newFactSum(
               'tasks.open-count.assign.project', $project_phids),
           ),
         ));
 
       $closed_function = $this->newFunction(
         array(
           'accumulate',
           $this->newFactSum('tasks.open-count.status.project', $project_phids),
         ));
     } else {
       $open_function = $this->newFunction(
         array(
           'accumulate',
-          array('fact', 'tasks.open-count.create'),
+          array(
+            'sum',
+            array('fact', 'tasks.open-count.create'),
+            array('fact', 'tasks.open-count.status'),
+          ),
         ));
 
       $closed_function = $this->newFunction(
         array(
           'accumulate',
           array('fact', 'tasks.open-count.status'),
         ));
     }
 
     $open_function->getFunctionLabel()
       ->setKey('open')
       ->setName(pht('Open Tasks'))
       ->setColor('rgba(0, 0, 200, 1)')
       ->setFillColor('rgba(0, 0, 200, 0.15)');
 
     $closed_function->getFunctionLabel()
       ->setKey('closed')
       ->setName(pht('Closed Tasks'))
       ->setColor('rgba(0, 200, 0, 1)')
       ->setFillColor('rgba(0, 200, 0, 0.15)');
 
     $datasets = array();
 
     $dataset = id(new PhabricatorChartStackedAreaDataset())
       ->setFunctions(
         array(
           $open_function,
           $closed_function,
         ))
       ->setStacks(
         array(
           array('open'),
           array('closed'),
         ));
 
     $datasets[] = $dataset;
     $chart->attachDatasets($datasets);
   }
 
   private function newFactSum($fact_key, array $phids) {
     $result = array();
     $result[] = 'sum';
 
     foreach ($phids as $phid) {
       $result[] = array('fact', $fact_key, $phid);
     }
 
     return $result;
   }
 
 }