diff --git a/js/src/forum/addTeamsSettings.js b/js/src/forum/addTeamsSettings.js
index 5020b85..db794ef 100644
--- a/js/src/forum/addTeamsSettings.js
+++ b/js/src/forum/addTeamsSettings.js
@@ -27,12 +27,14 @@ class TeamsSettingsBlock extends Component {
             'sbp-jm-msteams.types.newPost',
             'Someone replies to a discussion I am following'
           )}
+
           {this.prefSwitch(
             user,
             prefs,
             'sbp-jm-msteams.types.postMentioned',
             'Someone mentions me in a post'
           )}
+
           {this.prefSwitch(
             user,
             prefs,
@@ -44,23 +46,25 @@ class TeamsSettingsBlock extends Component {
     );
   }
 
-prefSwitch(user, prefs, key, label) {
-  return (
-    <Switch
-      state={!!prefs[key]}
-      onchange={(value) =>
-        user.savePreferences({
-          [key]: value,
-        })
-      }
-    >
-      {label}
-    </Switch>
-  );
+  prefSwitch(user, prefs, key, label) {
+    return (
+      <Switch
+        state={!!prefs[key]}
+        onchange={(value) => {
+          user.savePreferences({
+            [key]: value,
+          });
+        }}
+      >
+        {label}
+      </Switch>
+    );
+  }
 }
 
 export default function addTeamsSettings() {
   extend(SettingsPage.prototype, 'content', function (vnode) {
+    // content ist in Flarum 1.x ein VNode mit children[]
     vnode.children.push(<TeamsSettingsBlock />);
   });
 }
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