diff --git a/cron.php b/cron.php
index a4d2bb8692..6fdc7cb24d 100644
--- a/cron.php
+++ b/cron.php
@@ -119,6 +119,8 @@ try {
 
 			$logger->debug('Run ' . get_class($job) . ' job with ID ' . $job->getId(), ['app' => 'cron']);
 			$job->execute($jobList, $logger);
+			// clean up after unclean jobs
+			\OC_Util::tearDownFS();
 			$logger->debug('Finished ' . get_class($job) . ' job with ID ' . $job->getId(), ['app' => 'cron']);
 
 			$jobList->setLastJob($job);