diff --git a/config/default.php b/config/default.php
index 13a12cf..7a8fb7b 100644
--- a/config/default.php
+++ b/config/default.php
@@ -18,8 +18,6 @@ return [
     'organisation' => [
         'registration' => [
             'require_approval' => true,
-        ],
-        'approval' => [
             'timeout' => -1,
         ],
     ],
diff --git a/src/Controller/OrganisationRegistrationController.php b/src/Controller/OrganisationRegistrationController.php
index e71ac02..d99c907 100644
--- a/src/Controller/OrganisationRegistrationController.php
+++ b/src/Controller/OrganisationRegistrationController.php
@@ -135,7 +135,7 @@ class OrganisationRegistrationController extends SimpleController
             ]);
 
             if ($config['organisation.registration.require_approval']) {
-                $timeout =  $this->ci->config['organisation.approval.timeout'];
+                $timeout =  $this->ci->config['organisation.registration.timeout'];
 
                 // Try to generate a new approval request
                 $approval = $this->ci->repoOrganisationApproval->create($organisation, $currentUser, $timeout);
@@ -644,7 +644,7 @@ class OrganisationRegistrationController extends SimpleController
      */
     protected function sendApprovalEmail(UserInterface $requester, OrganisationInterface $organisation, $token)
     {
-        $timeout =  $this->ci->config['organisation.approval.timeout'];
+        $timeout =  $this->ci->config['organisation.registration.timeout'];
 
         // Create and send approval email
         $message = new TwigMailMessage($this->ci->view, 'mail/organisation-approval-request.html.twig');