diff --git a/actions/tag.php b/actions/tag.php
index d15f64498d..c413bf8c34 100644
--- a/actions/tag.php
+++ b/actions/tag.php
@@ -86,4 +86,9 @@ class TagAction extends Action
         $this->pagination($this->page > 1, $cnt > NOTICES_PER_PAGE,
                           $this->page, 'tag', array('tag' => $this->tag));
     }
+
+    function isReadOnly()
+    {
+        return true;
+    }
 }