diff --git a/module/programplan/model.php b/module/programplan/model.php
index a8bc894f5f..7e3ea22b58 100755
--- a/module/programplan/model.php
+++ b/module/programplan/model.php
@@ -1054,7 +1054,7 @@ class programplanModel extends model
 
         if($plan->parent > 0)
         {
-            $plan->attribute = $parentStage->attribute;
+            $plan->attribute = $parentStage->attribute == 'mix' ? $plan->attribute : $parentStage->attribute;
             $plan->acl       = $parentStage->acl;
             $parentPercent   = $parentStage->percent;