diff --git a/4chan_x.js b/4chan_x.js
index b14c59be2..9b1a607f2 100644
--- a/4chan_x.js
+++ b/4chan_x.js
@@ -2022,7 +2022,7 @@
       }
       if (navtopr = $('#navtopr')) {
         options.init();
-      } else if ($.config('404 Redirect') && d.title === '4chan - 404') {
+      } else if ($.config('404 Redirect') && d.title === '4chan - 404' && /^\d+$/.test(g.THREAD_ID)) {
         redirect();
       } else {
         return;
diff --git a/script.coffee b/script.coffee
index ec818045c..bf19422d2 100644
--- a/script.coffee
+++ b/script.coffee
@@ -1555,7 +1555,7 @@ main =
       return
     if navtopr = $ '#navtopr'
       options.init()
-    else if $.config('404 Redirect') and d.title is '4chan - 404'
+    else if $.config('404 Redirect') and d.title is '4chan - 404' and /^\d+$/.test g.THREAD_ID
       redirect()
     else
       return