diff --git a/workflow/engine/classes/model/AppCacheView.php b/workflow/engine/classes/model/AppCacheView.php
index 5661fc0d6..5153b5ba0 100755
--- a/workflow/engine/classes/model/AppCacheView.php
+++ b/workflow/engine/classes/model/AppCacheView.php
@@ -507,7 +507,9 @@ class AppCacheView extends BaseAppCacheView
                 $criteria->getNewCriterion(AppCacheViewPeer::PRO_UID, $aProcesses, Criteria::IN))
             );
         } else {
-            $criteria->add(AppCacheViewPeer::PRO_UID, $aProcesses, Criteria::IN);
+            if (count($aProcesses) > 0) {
+                $criteria->add(AppCacheViewPeer::PRO_UID, $aProcesses, Criteria::IN);
+            }
         }
 
         //join with APP_DELAY table using APP_UID and DEL_INDEX