diff --git a/lib/private/DB/MigrationService.php b/lib/private/DB/MigrationService.php
index 729f9753dfb47..cbe5bd9b957d3 100644
--- a/lib/private/DB/MigrationService.php
+++ b/lib/private/DB/MigrationService.php
@@ -186,7 +186,7 @@ public function getAvailableVersions() {
 
 	protected function findMigrations() {
 		$directory = realpath($this->migrationsPath);
-		if (!file_exists($directory) || !is_dir($directory)) {
+		if ($directory === false || !file_exists($directory) || !is_dir($directory)) {
 			return [];
 		}