diff --git a/specification/maps/data-plane/Search/stable/1.0/search.json b/specification/maps/data-plane/Search/stable/1.0/search.json
index 05a7648a5c2d..def886770211 100644
--- a/specification/maps/data-plane/Search/stable/1.0/search.json
+++ b/specification/maps/data-plane/Search/stable/1.0/search.json
@@ -2490,7 +2490,8 @@
           "readOnly": true
         },
         "boundingBox": {
-          "$ref": "#/definitions/BoundingBoxCompassNotation"
+          "$ref": "#/definitions/BoundingBoxCompassNotation",
+          "description": "Defines the bounding box for the location. This property is only returned by the Search Address Reverse APIs. All other Search APIs return the `viewport` property of the `SearchAddressResultItem` object."
         }
       }
     },