diff --git a/src/components/About/AboutModules.js b/src/components/About/AboutModules.js
index 6a1e1d247..66f3c87b1 100644
--- a/src/components/About/AboutModules.js
+++ b/src/components/About/AboutModules.js
@@ -7,7 +7,7 @@ import {
 import css from './About.css';
 
 
-const AboutInterfaces = ({ list }) => {
+const AboutInterfaces = ({ list = [] }) => {
   list.sort((a, b) => a.name.localeCompare(b.name));
   return (
     <List
@@ -23,7 +23,7 @@ AboutInterfaces.propTypes = {
   list: PropTypes.arrayOf(PropTypes.object),
 };
 
-const AboutModules = ({ list }) => {
+const AboutModules = ({ list = [] }) => {
   list.sort((a, b) => a.name.localeCompare(b.name));
 
   return (