diff --git a/lib/private/Setup/AbstractDatabase.php b/lib/private/Setup/AbstractDatabase.php
index dbbb587206b59..7b8863f4e7fb0 100644
--- a/lib/private/Setup/AbstractDatabase.php
+++ b/lib/private/Setup/AbstractDatabase.php
@@ -77,7 +77,6 @@ public function initialize($config) {
 		$this->config->setValues([
 			'dbname' => $dbName,
 			'dbhost' => $dbHost,
-			'dbport' => $dbPort,
 			'dbtableprefix' => $dbTablePrefix,
 		]);