diff --git a/internal/config/flags.go b/internal/config/flags.go
index 2dc583abc..45ba70f9e 100644
--- a/internal/config/flags.go
+++ b/internal/config/flags.go
@@ -88,7 +88,7 @@ func (s *ConfigState) AddServerFlags(cmd *cobra.Command) {
 		cmd.Flags().Bool(InstanceExposeSuspendedFlag(), cfg.InstanceExposeSuspended, fieldtag("InstanceExposeSuspended", "usage"))
 		cmd.Flags().Bool(InstanceExposeSuspendedWebFlag(), cfg.InstanceExposeSuspendedWeb, fieldtag("InstanceExposeSuspendedWeb", "usage"))
 		cmd.Flags().Bool(InstanceDeliverToSharedInboxesFlag(), cfg.InstanceDeliverToSharedInboxes, fieldtag("InstanceDeliverToSharedInboxes", "usage"))
-		// cmd.Flags().StringSlice(InstanceLanguagesFlag(), cfg.InstanceLanguages.TagStrs(), fieldtag("InstanceLanguages", "usage"))
+		cmd.Flags().StringSlice(InstanceLanguagesFlag(), cfg.InstanceLanguages.TagStrs(), fieldtag("InstanceLanguages", "usage"))
 
 		// Accounts
 		cmd.Flags().Bool(AccountsRegistrationOpenFlag(), cfg.AccountsRegistrationOpen, fieldtag("AccountsRegistrationOpen", "usage"))