diff --git a/js/src/common/components/LinkButton.tsx b/js/src/common/components/LinkButton.tsx
index e4cdc02e8..e220caaa9 100644
--- a/js/src/common/components/LinkButton.tsx
+++ b/js/src/common/components/LinkButton.tsx
@@ -1,8 +1,8 @@
 import Button, { ButtonProps } from './Button';
 
 interface LinkButtonProps extends ButtonProps {
-    active: boolean;
-    oncreate: Function;
+    active?: boolean;
+    oncreate?: Function;
     href?: string;
 }
 
diff --git a/js/src/common/models/User.ts b/js/src/common/models/User.ts
index 302f0dd3a..8b548db90 100644
--- a/js/src/common/models/User.ts
+++ b/js/src/common/models/User.ts
@@ -101,7 +101,7 @@ export default class User extends Model {
     /**
      * Update the user's preferences.
      */
-    savePreferences(newPreferences: object): Promise<User> {
+    savePreferences(newPreferences: UserPreferences): Promise<User> {
         const preferences = this.preferences();
 
         Object.assign(preferences, newPreferences);
diff --git a/js/src/forum/components/SettingsPage.tsx b/js/src/forum/components/SettingsPage.tsx
index 159e7dbf1..fdda0b95e 100644
--- a/js/src/forum/components/SettingsPage.tsx
+++ b/js/src/forum/components/SettingsPage.tsx
@@ -122,10 +122,7 @@ export default class SettingsPage extends UserPage {
             Switch.component({
                 children: app.translator.trans('core.forum.settings.privacy_disclose_online_label'),
                 state: this.user.preferences().discloseOnline,
-                onchange: (value, component) => {
-                    this.user.pushAttributes({ lastSeenAt: null });
-                    this.preferenceSaver('discloseOnline')(value, component);
-                },
+                onchange: (value, component) => this.preferenceSaver('discloseOnline')(value, component),
             })
         );