diff --git a/scp/ajax.php b/scp/ajax.php
index 61f51055ad7af4b80d7439683221e47320687272..01b41867dd53bc052d5a7b9c8765327b140e3739 100644
--- a/scp/ajax.php
+++ b/scp/ajax.php
@@ -76,7 +76,7 @@ $dispatcher = patterns('',
         url_get('^(?P<tid>\d+)/user$', 'viewUser'),
         url_post('^(?P<tid>\d+)/user$', 'updateUser'),
         url_get('^(?P<tid>\d+)/preview', 'previewTicket'),
-        url_post('^(?P<tid>\d+)/lock', 'acquireLock'),
+        url_post('^(?P<tid>\d+)/lock$', 'acquireLock'),
         url_post('^(?P<tid>\d+)/lock/(?P<id>\d+)/renew', 'renewLock'),
         url_post('^(?P<tid>\d+)/lock/(?P<id>\d+)/release', 'releaseLock'),
         url_get('^(?P<tid>\d+)/collaborators/manage$', 'showCollaborators'),