diff --git a/classes/pref/prefs.php b/classes/pref/prefs.php
index 1fb40a0d..57123723 100644
--- a/classes/pref/prefs.php
+++ b/classes/pref/prefs.php
@@ -181,7 +181,8 @@ class Pref_Prefs extends Handler_Protected {
 		global $access_level_names;
 
 		$prefs_blacklist = array("STRIP_UNSAFE_TAGS", "REVERSE_HEADLINES",
-			"SORT_HEADLINES_BY_FEED_DATE", "DEFAULT_ARTICLE_LIMIT");
+			"SORT_HEADLINES_BY_FEED_DATE", "DEFAULT_ARTICLE_LIMIT",
+			"FEEDS_SORT_BY_UNREAD");
 
 		/* "FEEDS_SORT_BY_UNREAD", "HIDE_READ_FEEDS", "REVERSE_HEADLINES" */