diff --git a/trunk/module/tree/model.php b/trunk/module/tree/model.php
index 9cb859c501..efd8e72625 100644
--- a/trunk/module/tree/model.php
+++ b/trunk/module/tree/model.php
@@ -228,7 +228,7 @@ class treeModel extends model
         $linkHtml  = $module->name;
         if($module->type == 'bug' and $module->owner) $linkHtml .= '<span class="owner">[' . $users[$module->owner] . ']</span>';
         if(common::hasPriv('tree', 'edit')) $linkHtml .= ' ' . html::a(helper::createLink('tree', 'edit',   "module={$module->id}"), $this->lang->tree->edit, '', 'class="iframe"');
-        if(common::hasPriv('tree', 'browse') and strpos($module->type, 'doc') === false) $linkHtml .= ' ' . html::a(helper::createLink('tree', 'browse', "root={$module->root}&type={$module->type}&module={$module->id}"), $this->lang->tree->child);
+        if(common::hasPriv('tree', 'browse') and strpos('productdoc,projectdoc', $module->type) === false) $linkHtml .= ' ' . html::a(helper::createLink('tree', 'browse', "root={$module->root}&type={$module->type}&module={$module->id}"), $this->lang->tree->child);
         if(common::hasPriv('tree', 'delete')) $linkHtml .= ' ' . html::a(helper::createLink('tree', 'delete', "root={$module->root}&module={$module->id}"), $this->lang->delete, 'hiddenwin');
         if(common::hasPriv('tree', 'updateorder')) $linkHtml .= ' ' . html::input("orders[$module->id]", $module->order, 'style="width:30px;text-align:center"');
         return $linkHtml;