diff --git a/lib/private/DB/SQLiteSessionInit.php b/lib/private/DB/SQLiteSessionInit.php
index f8e6dcef8a..0e947b9918 100644
--- a/lib/private/DB/SQLiteSessionInit.php
+++ b/lib/private/DB/SQLiteSessionInit.php
@@ -58,6 +58,9 @@ class SQLiteSessionInit implements EventSubscriber {
 		$sensitive = ($this->caseSensitiveLike) ? 'true' : 'false';
 		$args->getConnection()->executeUpdate('PRAGMA case_sensitive_like = ' . $sensitive);
 		$args->getConnection()->executeUpdate('PRAGMA journal_mode = ' . $this->journalMode);
+		/** @var \PDO $pdo */
+		$pdo = $args->getConnection()->getWrappedConnection();
+		$pdo->sqliteCreateFunction('md5', 'md5', 1);
 	}
 
 	public function getSubscribedEvents() {