diff --git a/src/controllers/write/users.js b/src/controllers/write/users.js
index 5edad764fe..3ab37025ca 100644
--- a/src/controllers/write/users.js
+++ b/src/controllers/write/users.js
@@ -200,7 +200,7 @@ Users.invite = async (req, res) => {
 		return helpers.formatApiResponse(403, res, new Error('[[error:no-privileges]]'));
 	}
 
-	const inviteGroups = await groups.getUserInviteGroups(req.uid);
+	const inviteGroups = (await groups.getUserInviteGroups(req.uid)).map(group => group.name);
 	const cannotInvite = groupsToJoin.some(group => !inviteGroups.includes(group));
 	if (groupsToJoin.length > 0 && cannotInvite) {
 		return helpers.formatApiResponse(403, res, new Error('[[error:no-privileges]]'));
@@ -231,7 +231,7 @@ Users.getInviteGroups = async function (req, res) {
 	}
 
 	const userInviteGroups = await groups.getUserInviteGroups(req.params.uid);
-	return helpers.formatApiResponse(200, res, userInviteGroups);
+	return helpers.formatApiResponse(200, res, userInviteGroups.map(group => group.displayName));
 };
 
 Users.listEmails = async (req, res) => {
diff --git a/src/groups/user.js b/src/groups/user.js
index 5255adff1a..4238296a37 100644
--- a/src/groups/user.js
+++ b/src/groups/user.js
@@ -37,7 +37,10 @@ module.exports = function (Groups) {
 		allGroups = allGroups.filter(group => !Groups.ephemeralGroups.includes(group.name));
 
 		const publicGroups = allGroups.filter(group => group.hidden === 0 && group.system === 0 && group.private === 0);
-		const adminModGroups = [{ name: 'administrators' }, { name: 'Global Moderators' }];
+		const adminModGroups = [
+			{ name: 'administrators', displayName: 'administrators' },
+			{ name: 'Global Moderators', displayName: 'Global Moderators' },
+		];
 		// Private (but not hidden)
 		const privateGroups = allGroups.filter(group => group.hidden === 0 && group.system === 0 && group.private === 1);
 
@@ -58,7 +61,6 @@ module.exports = function (Groups) {
 		}
 
 		return inviteGroups
-			.concat(publicGroups)
-			.map(group => group.name);
+			.concat(publicGroups);
 	};
 };