diff --git a/docs/system/container-metrics.md b/docs/system/container-metrics.md
index d0a3abfffe..8deec83022 100644
--- a/docs/system/container-metrics.md
+++ b/docs/system/container-metrics.md
@@ -31,7 +31,7 @@ This metric is optional.
 | Value  | Description |
 |---|---|
 | `user` | When tasks of the cgroup are in user mode (Linux). When all container processes are in user mode (Windows). |
-| `system` | When CPU is used by the system |
+| `system` | When CPU is used by the system (host OS) |
 | `kernel` | When tasks of the cgroup are in kernel mode (Linux). When all container processes are in kernel mode (Windows). |
 <!-- endsemconv -->
 
diff --git a/model/metrics/container.yaml b/model/metrics/container.yaml
index c48d6113e5..a36d296fd7 100644
--- a/model/metrics/container.yaml
+++ b/model/metrics/container.yaml
@@ -15,7 +15,7 @@ groups:
               brief: "When tasks of the cgroup are in user mode (Linux). When all container processes are in user mode (Windows)."
             - id: system
               value: 'system'
-              brief: "When CPU is used by the system"
+              brief: "When CPU is used by the system (host OS)"
             - id: kernel
               value: 'kernel'
               brief: "When tasks of the cgroup are in kernel mode (Linux). When all container processes are in kernel mode (Windows)."