diff --git a/src/models/attendee.test.ts b/src/models/attendee.test.ts
index 42d5bd1..c509578 100644
--- a/src/models/attendee.test.ts
+++ b/src/models/attendee.test.ts
@@ -52,6 +52,16 @@ it('can set that an attendee is messagable', async () => {
   );
 });
 
+it('can set that an attendee is not messagable', async () => {
+  const attendee = new Attendee();
+
+  expect(attendee.messagable(false).getAttributes()).toEqual(
+    expect.objectContaining({
+      messagable: false,
+    }),
+  );
+});
+
 it('can set an attendees first and last name', async () => {
   const attendee = new Attendee();
 
diff --git a/src/models/attendee.ts b/src/models/attendee.ts
index 2063d53..4ffdae2 100644
--- a/src/models/attendee.ts
+++ b/src/models/attendee.ts
@@ -7,7 +7,7 @@ export interface AttendeeModel extends ModelInterface {
 
   located(details: LocatableDetailParameters): this;
 
-  messagable(): this;
+  messagable(messageable: boolean): this;
 
   named(first: string, last: string): this;
 
@@ -80,8 +80,8 @@ export default class Attendee extends Model implements AttendeeModel {
     return this;
   }
 
-  public messagable(): this {
-    this.attributes.messagable = true;
+  public messagable(messageable: boolean = true): this {
+    this.attributes.messagable = messageable;
 
     return this;
   }