diff --git a/conf/config.inc.php b/conf/config.inc.php
index d47ec7f..754e8cb 100644
--- a/conf/config.inc.php
+++ b/conf/config.inc.php
@@ -454,6 +454,25 @@
 ; Validate the hostname in the ReCaptcha response
 recaptcha_enforce_hostname = Off
 
+; Whether or not to enable ALTCHA
+altcha = off
+
+; Private key for ALTCHA
+altcha_hmackey = '__APP_KEY__'
+
+; Whether or not to use ALTCHA on user registration
+altcha_on_register = on
+
+; Whether or not to use ALTCHA on user login
+altcha_on_login = on
+
+; Whether or not to use ALTCHA on user lost password
+altcha_on_lost_password = on
+
+; The quantity of encryption cycles performed by the ALTCHA system
+altcha_encrypt_number = 10000
+
+
 ;;;;;;;;;;;;;;;;;;;;;
 ; External Commands ;
 ;;;;;;;;;;;;;;;;;;;;;