From 960a38fe4308d2844cdf61e2a936ce505f9d1a14 Mon Sep 17 00:00:00 2001
From: David Baker <dave@matrix.org>
Date: Fri, 14 Aug 2015 15:44:21 +0100
Subject: [PATCH] Don't try loading -ve room indices

---
 src/controllers/pages/MatrixChat.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/controllers/pages/MatrixChat.js b/src/controllers/pages/MatrixChat.js
index 09c01374e..71c9140c1 100644
--- a/src/controllers/pages/MatrixChat.js
+++ b/src/controllers/pages/MatrixChat.js
@@ -166,7 +166,7 @@ module.exports = {
                         break;
                     }
                 }
-                roomIndex = (roomIndex + roomIndexDelta) % allRooms.length;
+                roomIndex = Math.max((roomIndex + roomIndexDelta) % allRooms.length, 0);
                 this.focusComposer = true;
                 this.setState({
                     currentRoom: allRooms[roomIndex].roomId