diff --git a/client/src/components/UserProfilePage.tsx b/client/src/components/UserProfilePage.tsx
index c894a82..fabea93 100644
--- a/client/src/components/UserProfilePage.tsx
+++ b/client/src/components/UserProfilePage.tsx
@@ -225,7 +225,7 @@ export default function UserProfilePage({ onBack, onLogout }: UserProfilePagePro
       trackPlausibleEvent(PlausibleEvents.PASSKEY_RENAMED)
       showAlert(t('profile.passkey_rename_success'))
     } catch (err: unknown) {
-      setError(err instanceof Error ? err.message : t('profile.add_passkey_failed'))
+      setError(err instanceof Error ? err.message : t('profile.passkey_rename_failed'))
     } finally {
       setPasskeyBusy(false)
     }
diff --git a/client/src/i18n/locales/de.json b/client/src/i18n/locales/de.json
index fcfbf37..b715e63 100644
--- a/client/src/i18n/locales/de.json
+++ b/client/src/i18n/locales/de.json
@@ -344,6 +344,7 @@
       "passkey_label_placeholder": "z. B. MacBook, iPhone",
       "passkey_rename_btn": "Name speichern",
       "passkey_rename_success": "Passkey-Name gespeichert.",
+      "passkey_rename_failed": "Passkey-Name konnte nicht gespeichert werden.",
       "passkey_unnamed": "Unbenannter Passkey",
       "stats_title": "Statistiken",
       "stats_subtitle": "Über alle deine Logbücher auf diesem Gerät",
diff --git a/client/src/i18n/locales/en.json b/client/src/i18n/locales/en.json
index 096d9d6..9862512 100644
--- a/client/src/i18n/locales/en.json
+++ b/client/src/i18n/locales/en.json
@@ -344,6 +344,7 @@
       "passkey_label_placeholder": "e.g. MacBook, iPhone",
       "passkey_rename_btn": "Save name",
       "passkey_rename_success": "Passkey name saved.",
+      "passkey_rename_failed": "Could not save passkey name.",
       "passkey_unnamed": "Unnamed passkey",
       "stats_title": "Statistics",
       "stats_subtitle": "Across all your logbooks on this device",