diff --git a/compose.smartctl.yml b/compose.smartctl.yml
index 32123bd..09405dd 100644
--- a/compose.smartctl.yml
+++ b/compose.smartctl.yml
@@ -5,9 +5,9 @@ services:
     image: "prometheuscommunity/smartctl-exporter:v0.15.0"
     volumes:
     - "/var/lib/smartmontools/json:/debug"
+    - "/dev:/dev:ro"
     command:
     - "--smartctl.fake-data"
-    - "--smartctl.interval=1h"
     networks:
     - "proxy"
     deploy: