diff --git a/src/main/Main.coffee b/src/main/Main.coffee
index 50cedf55a..3e1de4492 100644
--- a/src/main/Main.coffee
+++ b/src/main/Main.coffee
@@ -584,7 +584,7 @@ Main =
       Main.thisPageIsLegit = if g.SITE.isThisPageLegit
         g.SITE.isThisPageLegit()
       else
-        !/^[45]\d\d\b/.test(document.title) and !/\.json$/.test(location.pathname)
+        !/^[45]\d\d\b/.test(document.title) and !/\.(?:json|rss)$/.test(location.pathname)
     Main.thisPageIsLegit
 
   ready: (cb) ->