diff --git a/core/command/maintenance/install.php b/core/command/maintenance/install.php
index e92a546daacecdc7bb63fbc31f34100bf81dea8b..92a28425e50213940251137c1c9ddec2854d142e 100644
--- a/core/command/maintenance/install.php
+++ b/core/command/maintenance/install.php
@@ -40,6 +40,7 @@ class Install extends Command {
 	protected function execute(InputInterface $input, OutputInterface $output) {
 
 		// validate the environment
+		$this->config->setSystemValue('supportedDatabases', ['sqlite', 'mysql', 'pgsql', 'oci']);
 		$setupHelper = new Setup($this->config, \OC::$server->getIniWrapper(), \OC::$server->getL10N('lib'), new \OC_Defaults());
 		$sysInfo = $setupHelper->getSystemInfo();
 		$errors = $sysInfo['errors'];