diff --git a/.env.example b/.env.example
index 3fd682f..c8c57fd 100644
--- a/.env.example
+++ b/.env.example
@@ -37,7 +37,7 @@ MAIL_ENCRYPTION=tls
 MAIL_SENDFROM=null
 MAIL_SENDTO=null
 
-MAILCHIMP_APIKEY=
-MAILCHIMP_LISTID=
+MAILCHIMP_APIKEY=null
+MAILCHIMP_LISTID=null
 
 REGISTRATION=true
diff --git a/app/Http/Controllers/SubscriptionController.php b/app/Http/Controllers/SubscriptionController.php
index 0ada1e2..96e244f 100644
--- a/app/Http/Controllers/SubscriptionController.php
+++ b/app/Http/Controllers/SubscriptionController.php
@@ -18,7 +18,7 @@ class SubscriptionController extends Controller {
         $lname   = preg_match('/. ./', $name) === 1 ? preg_replace('/^[^ ][^ ]* /', '', $name) : '';
         $email   = $request['email'];
 
-        if (env('MAILCHIMP_APIKEY', '') != '' && env('MAILCHIMP_LISTID', '') != '') {
+        if (env('MAILCHIMP_APIKEY') != null && env('MAILCHIMP_LISTID') != null) {
             // Submit the subscription request
             Newsletter::subscribeOrUpdate($email, [
                 'FNAME' => $fname,