diff --git a/frontend/src/Series/Details/SeriesAlternateTitles.js b/frontend/src/Series/Details/SeriesAlternateTitles.js
index d61c32dad..65b08ba9f 100644
--- a/frontend/src/Series/Details/SeriesAlternateTitles.js
+++ b/frontend/src/Series/Details/SeriesAlternateTitles.js
@@ -26,7 +26,7 @@ function SeriesAlternateTitles({ alternateTitles }) {
 }
 
 SeriesAlternateTitles.propTypes = {
-  alternateTitles: PropTypes.arrayOf(PropTypes.string).isRequired
+  alternateTitles: PropTypes.arrayOf(PropTypes.object).isRequired
 };
 
 export default SeriesAlternateTitles;
diff --git a/frontend/src/Series/Details/SeriesDetails.js b/frontend/src/Series/Details/SeriesDetails.js
index 74ff7f567..4ac4d1dd5 100644
--- a/frontend/src/Series/Details/SeriesDetails.js
+++ b/frontend/src/Series/Details/SeriesDetails.js
@@ -704,7 +704,7 @@ SeriesDetails.propTypes = {
   overview: PropTypes.string.isRequired,
   images: PropTypes.arrayOf(PropTypes.object).isRequired,
   seasons: PropTypes.arrayOf(PropTypes.object).isRequired,
-  alternateTitles: PropTypes.arrayOf(PropTypes.string).isRequired,
+  alternateTitles: PropTypes.arrayOf(PropTypes.object).isRequired,
   tags: PropTypes.arrayOf(PropTypes.number).isRequired,
   isSaving: PropTypes.bool.isRequired,
   saveError: PropTypes.object,