diff --git a/wp-comments-post.php b/wp-comments-post.php
index 5988fd5f8b..9f5d3b86af 100644
--- a/wp-comments-post.php
+++ b/wp-comments-post.php
@@ -1,4 +1,10 @@
 <?php
+if ($_SERVER["REQUEST_METHOD"] != "POST") {
+    header('Allow: POST');
+	header("HTTP/1.1 405 Method Not Allowed");
+	header("Content-type: text/plain");
+    exit;
+}
 require( dirname(__FILE__) . '/wp-config.php' );
 
 nocache_headers();