diff --git a/database.sql b/database.sql
index 054284657..a4f6aa636 100644
--- a/database.sql
+++ b/database.sql
@@ -38,7 +38,7 @@ CREATE TABLE IF NOT EXISTS `gserver` (
 --
 CREATE TABLE IF NOT EXISTS `user` (
 	`uid` mediumint unsigned NOT NULL auto_increment COMMENT 'sequential ID',
-	`parent-uid` mediumint unsigned NOT NULL DEFAULT 0 COMMENT 'The parent user that has full control about this user',
+	`parent-uid` mediumint unsigned NOT NULL COMMENT 'The parent user that has full control about this user',
 	`guid` varchar(64) NOT NULL DEFAULT '' COMMENT 'A unique identifier for this user',
 	`username` varchar(255) NOT NULL DEFAULT '' COMMENT 'Name that this user is known by',
 	`password` varchar(255) NOT NULL DEFAULT '' COMMENT 'encrypted password',
diff --git a/static/dbstructure.config.php b/static/dbstructure.config.php
index cabb48c58..e72622245 100644
--- a/static/dbstructure.config.php
+++ b/static/dbstructure.config.php
@@ -94,7 +94,7 @@ return [
 		"comment" => "The local users",
 		"fields" => [
 			"uid" => ["type" => "mediumint unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-			"parent-uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "foreign" => ["user" => "uid"],
+			"parent-uid" => ["type" => "mediumint unsigned", "not null" => "1", "foreign" => ["user" => "uid"],
 				"comment" => "The parent user that has full control about this user"],
 			"guid" => ["type" => "varchar(64)", "not null" => "1", "default" => "", "comment" => "A unique identifier for this user"],
 			"username" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "Name that this user is known by"],