diff --git a/module/project/model.php b/module/project/model.php
index 5002129c70..4437c32e68 100644
--- a/module/project/model.php
+++ b/module/project/model.php
@@ -2748,7 +2748,7 @@ class projectModel extends model
         $productPlans = array();
         foreach($products as $productID => $product)
         {
-            $productPlans[$productID] = $this->productplan->getPairs($product->id, $product->branch);
+            $productPlans[$productID] = $this->productplan->getPairs($product->id, isset($product->branch) ? $product->branch : '');
         }
         return $productPlans;
     }