diff --git a/inc/config.php b/inc/config.php
index 766fe912..69e1b7e2 100644
--- a/inc/config.php
+++ b/inc/config.php
@@ -236,6 +236,9 @@
     // To prevent bump atacks; returns the thread to last position after the last post is deleted.
     $config['anti_bump_flood'] = false;
 
+    // Reject thread creation from IPs without any prior post history.
+    $config['op_require_history'] = false;
+
     /*
      * Introduction to Tinyboard's spam filter:
      *