diff --git a/scripts/jobs/cron_tasks.php b/scripts/jobs/cron_tasks.php
index b452c2d4..d0e260dd 100644
--- a/scripts/jobs/cron_tasks.php
+++ b/scripts/jobs/cron_tasks.php
@@ -166,6 +166,11 @@ while ($row = $result_tasks_stmt->fetch(PDO::FETCH_ASSOC)) {
 			}
 			$cronlog->logAction(CRON_ACTION, LOG_NOTICE, 'Running: chown -R ' . (int)Settings::Get('system.vmail_uid') . ':' . (int)Settings::Get('system.vmail_gid') . ' ' . escapeshellarg($usermaildir));
 			safe_exec('chown -R ' . (int)Settings::Get('system.vmail_uid') . ':' . (int)Settings::Get('system.vmail_gid') . ' ' . escapeshellarg($usermaildir));
+
+			// clear NSCD cache if using fcgid or fpm, #1570
+			if (Settings::Get('system.mod_fcgid') == 1 || (int)Settings::Get('phpfpm.enabled') == 1) {
+				safe_exec('nscd -i group 1> /dev/null', false, array('>'));
+			}
 		}
 	}