diff --git a/website/source/api/session.html.md b/website/source/api/session.html.md
index 90db44bf9f..ff59a779e8 100644
--- a/website/source/api/session.html.md
+++ b/website/source/api/session.html.md
@@ -43,8 +43,8 @@ The table below shows this endpoint's support for
- `Name` `(string: "")` - Specifies a human-readable name for the session.
- `Checks` `(array: nil)` - specifies a list of associated health
- checks. It is highly recommended that, if you override this list, you include
- the default `serfHealth`.
+ check IDs (commonly `CheckID` in API responses). It is highly recommended that,
+ if you override this list, you include the default `serfHealth`.
- `Behavior` `(string: "release")` - Controls the behavior to take when a
session is invalidated. Valid values are: