diff --git a/web/settings/relationship/add-users-list.react.js b/web/settings/relationship/add-users-list.react.js
--- a/web/settings/relationship/add-users-list.react.js
+++ b/web/settings/relationship/add-users-list.react.js
@@ -43,7 +43,6 @@
 
   const searchTextPresent = searchText.length > 0;
   const userInfos = useSelector(state => state.userStore.userInfos);
-  // eslint-disable-next-line no-unused-vars
   const mergedUserInfos = React.useMemo(() => {
     const mergedInfos = {};
 
@@ -69,6 +68,15 @@
     userStoreSearchResults,
   ]);
 
+  // eslint-disable-next-line no-unused-vars
+  const sortedUsers = React.useMemo(
+    () =>
+      Object.keys(mergedUserInfos)
+        .map(userID => mergedUserInfos[userID])
+        .sort((user1, user2) => user1.username.localeCompare(user2.username)),
+    [mergedUserInfos],
+  );
+
   return null;
 }