diff --git a/imageroot/etc/config.yml b/imageroot/etc/config.yml
index 3bfd1e5..4f68684 100644
--- a/imageroot/etc/config.yml
+++ b/imageroot/etc/config.yml
@@ -12,7 +12,7 @@ scrape_configs:
     syslog:
       listen_address: ${PROMTAIL_ADDRESS}:${PROMTAIL_PORT}
       label_structured_data: yes
-      idle_timeout: 1800
+      idle_timeout: 1800s
       labels:
         job: "syslog"
         controller_name: ${OVPN_CN}