diff --git a/html/user/forum_reply.php b/html/user/forum_reply.php
index bde6e4a23f..73a74be133 100644
--- a/html/user/forum_reply.php
+++ b/html/user/forum_reply.php
@@ -60,12 +60,11 @@ if (!empty($_POST['content'])) {
 }
 
 
-if (get_int('post')) {
+if (get_int('post', true)) {
     $post = getPost(get_int('post'));
 }
 
 
-
 // TODO: Write a function for this.
 if ($helpdesk) {
     page_head('Questions and answers');