diff --git a/src/topics/posts.js b/src/topics/posts.js
index 573c8b6ca8..ba2a5eba13 100644
--- a/src/topics/posts.js
+++ b/src/topics/posts.js
@@ -128,7 +128,7 @@ module.exports = function(Topics) {
 								return users.indexOf(uid) === idx;
 							});
 
-							user.getMultipleUserFields(parentUids, ['username'], function(err, userDataArr) {
+							user.getUsersFields(parentUids, ['username'], function(err, userDataArr) {
 								var userData = {};
 								userDataArr.forEach(function(user) {
 									userData[user.uid] = user;