diff --git a/src/components/settings/DelegateSettings.tsx b/src/components/settings/DelegateSettings.tsx
index e13a88d0..ffcab891 100644
--- a/src/components/settings/DelegateSettings.tsx
+++ b/src/components/settings/DelegateSettings.tsx
@@ -27,7 +27,7 @@ import {
   summarizeDelegates,
   type DelegateSummary,
 } from '../../lib/delegation/delegation';
-import { describeSummary, principalDisplay, resolvePrincipal } from '../../lib/delegation/display';
+import { describeSummary, principalDisplay, principalRowDisplay, resolvePrincipal } from '../../lib/delegation/display';
 import {
   pruneRememberedPrincipals,
   rememberPrincipals,
@@ -223,9 +223,7 @@ export function DelegateSettings() {
           <View style={styles.list}>
             {summaries.map((summary, index) => {
               const principal = principalFor(summary.principalId);
-              const display = principal
-                ? principalDisplay(principal)
-                : { name: t('delegates.unknown_person', 'Unknown person'), detail: summary.principalId };
+              const display = principalRowDisplay(principal, t);
               const busy = removingId === summary.principalId;
               return (
                 <View key={summary.principalId} style={[styles.row, index > 0 && styles.rowBorder]}>
diff --git a/src/lib/delegation/__tests__/unknown-principal.test.ts b/src/lib/delegation/__tests__/unknown-principal.test.ts
index 4159ce37..5dfb6f43 100644
--- a/src/lib/delegation/__tests__/unknown-principal.test.ts
+++ b/src/lib/delegation/__tests__/unknown-principal.test.ts
@@ -21,6 +21,13 @@ describe('someone with access the server does not name', () => {
     expect(principalRowDisplay(principal, tEn)).toEqual({ name: 'userb@example.org', detail: 'User B' });
   });
 
+  it('is the row the Delegates settings list shows', () => {
+    // On Stalwart 1.0.1 the row read "Unknown person" over "e".
+    const settings = fs.readFileSync(path.resolve(__dirname, '../../../components/settings/DelegateSettings.tsx'), 'utf8');
+    expect(settings).toMatch(/const display = principalRowDisplay\(principal, t\);/);
+    expect(settings).not.toMatch(/detail: summary\.principalId/);
+  });
+
   it('gets no id for an address line in the calendar and address book share sheet', () => {
     const sheet = fs.readFileSync(path.resolve(__dirname, '../../../components/sharing/ShareCollectionSheet.tsx'), 'utf8');
     const label = sheet.slice(sheet.indexOf('const renderPrincipalLabel'), sheet.indexOf('return (', sheet.indexOf('const renderPrincipalLabel')) + 900);