diff --git a/docker/wp-config.php b/docker/wp-config.php
index f9e212f89417808f979ae9873ce63361042c5389..0d24d7b2e60209e355ea49b5c72eef07a244a7a4 100644
--- a/docker/wp-config.php
+++ b/docker/wp-config.php
@@ -126,7 +126,6 @@ define('AUTH_SALT',         $noblogs_config['secrets']['auth_salt']);
 define('SECURE_AUTH_SALT',  $noblogs_config['secrets']['secure_auth_salt']);
 define('LOGGED_IN_SALT',    $noblogs_config['secrets']['logged_in_salt']);
 define('NONCE_SALT',        $noblogs_config['secrets']['nonce_salt']);
-define('WP_CACHE_KEY_SALT', $noblogs_config['secrets']['wp_cache_key_salt']);
 
 /**#@-*/