diff --git a/4chan_x.user.js b/4chan_x.user.js
index 76f8e00fe..0df2b8613 100644
--- a/4chan_x.user.js
+++ b/4chan_x.user.js
@@ -5239,7 +5239,7 @@
         return;
       }
       status = req.status;
-      if ([200, 304].contains(status)) {
+      if (![200, 304].contains(status)) {
         a.textContent = "Error " + req.statusText + " (" + status + ")";
         $.off(a, 'click', ExpandThread.cb.toggle);
         return;
diff --git a/src/features.coffee b/src/features.coffee
index e19fe2821..f5245d461 100644
--- a/src/features.coffee
+++ b/src/features.coffee
@@ -3479,7 +3479,7 @@ ExpandThread =
   parse: (req, thread, a) ->
     return if a.textContent[0] is '+'
     {status} = req
-    if [200, 304].contains status
+    unless [200, 304].contains status
       a.textContent = "Error #{req.statusText} (#{status})"
       $.off a, 'click', ExpandThread.cb.toggle
       return