1 files changed, 2 insertions, 1 deletions
diff --git a/src/fields/Doc.ts b/src/fields/Doc.ts
index 63d491b07..7cf29b168 100644
--- a/src/fields/Doc.ts
+++ b/src/fields/Doc.ts
@@ -20,7 +20,7 @@ import { RichTextField } from "./RichTextField";
 import { listSpec } from "./Schema";
 import { ComputedField, ScriptField } from "./ScriptField";
 import { Cast, FieldValue, NumCast, StrCast, ToConstructor } from "./Types";
-import { AudioField, ImageField, PdfField, VideoField, WebField } from "./URLField";
+import { AudioField, ImageField, MapField, PdfField, VideoField, WebField } from "./URLField";
 import { deleteProperty, GetEffectiveAcl, getField, getter, makeEditable, makeReadOnly, normalizeEmail, setter, SharingPermissions, updateFunction } from "./util";
 import JSZip = require("jszip");
 
@@ -618,6 +618,7 @@ export namespace Doc {
             else if (value instanceof AudioField) return { url: value.url.href, __type: "audio" };
             else if (value instanceof VideoField) return { url: value.url.href, __type: "video" };
             else if (value instanceof WebField) return { url: value.url.href, __type: "web" };
+            else if (value instanceof MapField) return { url: value.url.href, __type: "map" };
             else if (value instanceof DateField) return { date: value.toString(), __type: "date" };
             else if (value instanceof ProxyField) return { fieldId: value.fieldId, __type: "proxy" };
             else if (value instanceof Array && key !== "fields") return { fields: value, __type: "list" };