diff --git a/include/staff/templates/collaborators.tmpl.php b/include/staff/templates/collaborators.tmpl.php
index d25d10a83fb72bd3c84797137503ac74d89f8f9c..b2545daa315c3f889f1150267c8736eccea54401 100644
--- a/include/staff/templates/collaborators.tmpl.php
+++ b/include/staff/templates/collaborators.tmpl.php
@@ -81,10 +81,10 @@ if(($users=$thread->getCollaborators())) {?>
 
 if ($_POST && $thread && $thread->getNumCollaborators()) {
 
-    $collaborators = sprintf('Participants (%d)',
+    $collaborators = sprintf('Collaborators (%d)',
             $thread->getNumCollaborators());
 
-    $recipients = sprintf(__('Recipients (%d of %d)'),
+    $recipients = sprintf(__('Collaborators (%d of %d)'),
           $thread->getNumActiveCollaborators(),
           $thread->getNumCollaborators());
     ?>
diff --git a/include/staff/templates/task-view.tmpl.php b/include/staff/templates/task-view.tmpl.php
index 6153c8f20da3987fecebbdedd08ed20783dd9faa..130beecf417e99def01f237d3e333f2bbb99b4df 100644
--- a/include/staff/templates/task-view.tmpl.php
+++ b/include/staff/templates/task-view.tmpl.php
@@ -372,9 +372,9 @@ if (!$ticket) { ?>
                         <th><?php echo __('Collaborators');?>:</th>
                         <td>
                             <?php
-                            $collaborators = __('Add Participants');
+                            $collaborators = __('Collaborators');
                             if ($task->getThread()->getNumCollaborators())
-                                $collaborators = sprintf(__('Participants (%d)'),
+                                $collaborators = sprintf(__('Collaborators (%d)'),
                                         $task->getThread()->getNumCollaborators());
 
                             echo sprintf('<span><a class="collaborators preview"
@@ -486,9 +486,9 @@ else
                         style="display:<?php echo $thread->getNumCollaborators() ? 'inline-block': 'none'; ?>;"
                         >
                     <?php
-                    $recipients = __('Add Participants');
+                    $recipients = __('Collaborators');
                     if ($thread->getNumCollaborators())
-                        $recipients = sprintf(__('Recipients (%d of %d)'),
+                        $recipients = sprintf(__('Collaborators (%d of %d)'),
                                 $thread->getNumActiveCollaborators(),
                                 $thread->getNumCollaborators());