diff --git a/src/models/Field.ts b/src/models/Field.ts
index ce46db4..9ccdb4e 100644
--- a/src/models/Field.ts
+++ b/src/models/Field.ts
@@ -158,7 +158,8 @@ export class Field {
   /**
    * Returns a LngLatBounds object containing the southwest and northeast corners of a box to contain the field, spacing can also be provided
    * to pad the sides of the bounding area
-   * @param spacing - an optional paramater that will expand the bounding area by the given long lat amount
+   * @param spacing number(optional) - an optional paramater that will expand the bounding area by the given long lat amount
+   * @param squared boolean(optional) - when true will adjust the bounds by extending the narrower edge to match the wider edge
    * @returns LngLatBounds - an object containing the southwest and northeast coordinates of a bounding box
    */
   public fieldBounds(spacing?: number, squared?: boolean): LngLatBounds {