diff --git a/content/v2.0/reference/flux/stdlib/experimental/geo/s2cellidtoken.md b/content/v2.0/reference/flux/stdlib/experimental/geo/s2cellidtoken.md
index ea16f118a..01383d397 100644
--- a/content/v2.0/reference/flux/stdlib/experimental/geo/s2cellidtoken.md
+++ b/content/v2.0/reference/flux/stdlib/experimental/geo/s2cellidtoken.md
@@ -28,6 +28,7 @@ geo.s2CellIDToken(
 ### point
 Longitude and latitude in **decimal degrees** (WGS 84) to use when generating
 the S2 cell ID token.
+Object must contain `lat` and `lon` properties.
 
 _**Data type:** Object_