diff --git a/module/project/zen.php b/module/project/zen.php
index 13ffdf2931..e445239625 100644
--- a/module/project/zen.php
+++ b/module/project/zen.php
@@ -1052,7 +1052,7 @@ class projectZen extends project
         $linkedBranchIdList  = array();
         $branches            = $this->project->getBranchesByProject($projectID);
         $linkedProductIdList = empty($branches) ? '' : array_keys($branches);
-        $allProducts         = $this->loadModel('program')->getProductPairs($project->parent, 'all', 'noclosed', $linkedProductIdList);
+        $allProducts         = $this->loadModel('program')->getProductPairs($project->parent, 'all', 'noclosed', implode(',', $linkedProductIdList));
         $linkedProducts      = $this->loadModel('product')->getProducts($projectID, 'all', '', true, $linkedProductIdList);
         $projectStories      = $this->project->getStoriesByProject($projectID);
         $projectBranches     = $this->project->getBranchGroup($projectID, array_keys($linkedProducts));