diff --git a/wordpress/content.md b/wordpress/content.md
index 90fd42934..62d685f6b 100644
--- a/wordpress/content.md
+++ b/wordpress/content.md
@@ -18,6 +18,7 @@ The following environment variables are also honored for configuring your WordPr
 -	`-e WORDPRESS_DB_USER=...` (defaults to "root")
 -	`-e WORDPRESS_DB_PASSWORD=...` (defaults to the value of the `MYSQL_ROOT_PASSWORD` environment variable from the linked `mysql` container)
 -	`-e WORDPRESS_DB_NAME=...` (defaults to "wordpress")
+-	`-e WORDPRESS_TABLE_PREFIX=...` (defaults to "", only set this when you need to override the default table prefix in wp-config.php)
 -	`-e WORDPRESS_AUTH_KEY=...`, `-e WORDPRESS_SECURE_AUTH_KEY=...`, `-e WORDPRESS_LOGGED_IN_KEY=...`, `-e WORDPRESS_NONCE_KEY=...`, `-e WORDPRESS_AUTH_SALT=...`, `-e WORDPRESS_SECURE_AUTH_SALT=...`, `-e WORDPRESS_LOGGED_IN_SALT=...`, `-e WORDPRESS_NONCE_SALT=...` (default to unique random SHA1s)
 
 If the `WORDPRESS_DB_NAME` specified does not already exist on the given MySQL server, it will be created automatically upon startup of the `%%REPO%%` container, provided that the `WORDPRESS_DB_USER` specified has the necessary permissions to create it.