diff --git a/website/source/docs/agent/checks.html.markdown b/website/source/docs/agent/checks.html.markdown
index 324661b249..d9b0c0f17b 100644
--- a/website/source/docs/agent/checks.html.markdown
+++ b/website/source/docs/agent/checks.html.markdown
@@ -37,7 +37,10 @@ There are three different kinds of checks:
   set to the failed state. This mechanism, conceptually similar to a dead man's switch,
   relies on the application to directly report its health. For example, a healthy app
   can periodically `PUT` a status update to the HTTP endpoint; if the app fails, the TTL will
-  expire and the health check enters a critical state.
+  expire and the health check enters a critical state. TTL checks also persist
+  their last known status to disk. This allows the Consul agent to restore the
+  last known status of the check across restarts. Persisted check status is
+  valid through the end of the TTL from the time of the last check.
 
 ## Check Definition