diff --git a/install/upgrades/3.0.0~1.sql b/install/upgrades/3.0.0~1.sql
index f4860b5e..865f0c60 100644
--- a/install/upgrades/3.0.0~1.sql
+++ b/install/upgrades/3.0.0~1.sql
@@ -204,9 +204,6 @@ UPDATE domaines_type SET create_tmpdir=true, create_targetdir=true WHERE target=
 ALTER IGNORE TABLE domaines MODIFY domaine VARCHAR(255);
 ALTER IGNORE TABLE sub_domaines MODIFY domaine VARCHAR(255);
 
--- Should lthe default_subdomains table already exists, prevent the following INSERT INTO to double the entries
-ALTER TABLE `default_subdomains` ADD UNIQUE KEY `unique_row` (`sub`,`domain_type`,`domain_type_parameter`,`concerned`);
-
 -- Defaults subdomains to create when a domain is added
 CREATE TABLE IF NOT EXISTS `default_subdomains` (
   `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT,
diff --git a/install/upgrades/3.4.6.sql b/install/upgrades/3.4.6.sql
index 1db7205f..fb29b904 100644
--- a/install/upgrades/3.4.6.sql
+++ b/install/upgrades/3.4.6.sql
@@ -36,3 +36,6 @@ ALTER TABLE `tld` ENGINE InnoDB;
 ALTER TABLE `variable` ENGINE InnoDB;
 ALTER TABLE `vm_history` ENGINE InnoDB;
 
+-- Should lthe default_subdomains table already exists, prevent the following INSERT INTO to double the entries
+ALTER TABLE `default_subdomains` ADD UNIQUE KEY `unique_row` (`sub`,`domain_type`,`domain_type_parameter`,`concerned`);
+