diff --git a/module/execution/control.php b/module/execution/control.php
index 6f37a5bd1f..4ef25ecea8 100644
--- a/module/execution/control.php
+++ b/module/execution/control.php
@@ -1501,7 +1501,7 @@ class execution extends control
             if(dao::isError()) return $this->send(array('result' => 'fail', 'message' => dao::getError()));
 
             $project = $this->loadModel('project')->getById($execution->project);
-            if($project->model == 'waterfall' or $project->model == 'waterfallplus') $this->loadModel('programplan')->computeProgress($executionID, 'close');
+            if(in_array($project->model, array('waterfall', 'waterfallplus', 'ipd'))) $this->loadModel('programplan')->computeProgress($executionID, 'close');
 
             $this->executeHooks($executionID);
 
diff --git a/module/programplan/model.php b/module/programplan/model.php
index 0e65e2bd02..2c1df0c0d4 100755
--- a/module/programplan/model.php
+++ b/module/programplan/model.php
@@ -1209,7 +1209,7 @@ class programplanModel extends model
         if(empty($stage) || empty($stage->path)) return false;
 
         $project = $this->loadModel('project')->getByID($stage->project);
-        if(isset($project->model) && $project->model != 'waterfall' && $project->model != 'waterfallplus') return false;
+        if(empty($stage) or empty($stage->path) or (!in_array($project->model, array('waterfall','waterfallplus','ipd')))) return false;
 
         $action       = strtolower($action);
         $parentIdList = explode(',', trim($stage->path, ','));