diff --git a/content/en/docs/concepts/architecture/nodes.md b/content/en/docs/concepts/architecture/nodes.md
index 4ee78a7fa4..55b02344ab 100644
--- a/content/en/docs/concepts/architecture/nodes.md
+++ b/content/en/docs/concepts/architecture/nodes.md
@@ -43,7 +43,7 @@ The `conditions` field describes the status of all `Running` nodes.
 | Node Condition | Description |
 |----------------|-------------|
 | `OutOfDisk`    | `True` if there is insufficient free space on the node for adding new pods, otherwise `False` |
-| `Ready`        | `True` if the node is healthy and ready to accept pods, `False` if the node is not healthy and is not accepting pods, and `Unknown` if the node controller has not heard from the node in the last 40 seconds |
+| `Ready`        | `True` if the node is healthy and ready to accept pods, `False` if the node is not healthy and is not accepting pods, and `Unknown` if the node controller has not heard from the node in the last `node-monitor-grace-period` (default is 40 seconds) |
 | `MemoryPressure`    | `True` if pressure exists on the node memory -- that is, if the node memory is low; otherwise `False` |
 | `DiskPressure`    | `True` if pressure exists on the disk size -- that is, if the disk capacity is low; otherwise `False` |
 | `NetworkUnavailable`    | `True` if the network for the node is not correctly configured, otherwise `False` |