diff --git a/module/testtask/control.php b/module/testtask/control.php
index 7ca0ee7915..9e187bfd1a 100644
--- a/module/testtask/control.php
+++ b/module/testtask/control.php
@@ -313,7 +313,7 @@ class testtask extends control
         $this->view->task          = $task;
         $this->view->runs          = $runs;
         $this->view->users         = $this->loadModel('user')->getPairs('noclosed|qafirst');
-        $this->view->assignedTos   = $this->loadModel('user')->getPairs('noclosed|nodeleted|qafirst');
+        $this->view->assignedTos   = $this->loadModel('user')->getPairs('noclosed|noletter|nodeleted|qafirst');
         $this->view->moduleTree    = $this->loadModel('tree')->getTreeMenu($productID, $viewType = 'case', $startModuleID = 0, array('treeModel', 'createTestTaskLink'), $extra = $taskID);
         $this->view->browseType    = $browseType;
         $this->view->param         = $param;