diff --git a/app/views/RegisterView.js b/app/views/RegisterView.js
index 1fe127416..1e0ce2654 100644
--- a/app/views/RegisterView.js
+++ b/app/views/RegisterView.js
@@ -145,10 +145,12 @@ class RegisterView extends React.Component {
 				await loginRequest({ user: email, password });
 			}
 		} catch (e) {
-			if (e.data && e.data.errorType === 'username-invalid') {
+			if (e.data?.errorType === 'username-invalid') {
 				return loginRequest({ user: email, password });
 			}
-			showErrorAlert(e.data.error, I18n.t('Oops'));
+			if (e.data?.error) {
+				showErrorAlert(e.data.error, I18n.t('Oops'));
+			}
 		}
 		this.setState({ saving: false });
 	}