diff --git a/health/2.0/README b/health/2.0/README
index 2281f98969..11e6a7aaf1 100644
--- a/health/2.0/README
+++ b/health/2.0/README
@@ -71,6 +71,7 @@ service vendor.health-hal-2-0 /vendor/bin/hw/android.hardware.health@2.0-service
     class hal
     user system
     group system
+    file /dev/kmsg w
 
 5. Create device/<manufacturer>/<device>/health/HealthService.cpp: