diff --git a/packages/rocketchat-ui-flextab/client/tabs/membersList.js b/packages/rocketchat-ui-flextab/client/tabs/membersList.js
index c9e35fcd0a92..f6a92be62667 100644
--- a/packages/rocketchat-ui-flextab/client/tabs/membersList.js
+++ b/packages/rocketchat-ui-flextab/client/tabs/membersList.js
@@ -53,7 +53,11 @@ Template.membersList.helpers({
 			};
 		});
 
-		users = _.sortBy(users, u => u.user.username);
+		if (RocketChat.settings.get('UI_Use_Real_Name')) {
+			users = _.sortBy(users, u => u.user.name);
+		} else {
+			users = _.sortBy(users, u => u.user.username);
+		}
 		// show online users first.
 		// sortBy is stable, so we can do this
 		users = _.sortBy(users, u => u.status == null);
diff --git a/packages/rocketchat-ui-sidenav/client/directMessages.js b/packages/rocketchat-ui-sidenav/client/directMessages.js
index ae73370b526f..68e09b80d82e 100644
--- a/packages/rocketchat-ui-sidenav/client/directMessages.js
+++ b/packages/rocketchat-ui-sidenav/client/directMessages.js
@@ -7,6 +7,7 @@ Template.directMessages.helpers({
 
 	rooms() {
 		const query = { t: { $in: ['d']}, f: { $ne: true }, open: true };
+		const sort = { 't': 1 };
 
 		if (Meteor.user() && Meteor.user().settings && Meteor.user().settings.preferences && Meteor.user().settings.preferences.unreadRoomsMode) {
 			query.$or = [
@@ -15,6 +16,11 @@ Template.directMessages.helpers({
 			];
 		}
 
-		return ChatSubscription.find(query, { sort: { 't': 1, 'name': 1 }});
+		if (RocketChat.settings.get('UI_Use_Real_Name')) {
+			sort.fname = 1;
+		}
+		sort.name = 1;
+
+		return ChatSubscription.find(query, { sort });
 	}
 });