diff --git a/lib/private/DB/ConnectionFactory.php b/lib/private/DB/ConnectionFactory.php
index 83663dc54b7..1b0ac436364 100644
--- a/lib/private/DB/ConnectionFactory.php
+++ b/lib/private/DB/ConnectionFactory.php
@@ -233,7 +233,7 @@ class ConnectionFactory {
 			];
 		}
 
-		if ($this->config->getValue('db.persistent', false)) {
+		if ($this->config->getValue('dbpersistent', false)) {
 			$connectionParams['persistent'] = true;
 		}