diff --git a/src/components/structures/MatrixChat.js b/src/components/structures/MatrixChat.js
index 161a0fa984..9f3db9b531 100644
--- a/src/components/structures/MatrixChat.js
+++ b/src/components/structures/MatrixChat.js
@@ -161,7 +161,7 @@ export default React.createClass({
 
             // If we're trying to just view a user ID (i.e. /user URL), this is it
             viewUserId: null,
-
+            // this is persisted as mx_lhs_size, loaded in LoggedInView
             collapseLhs: false,
             collapsedRhs: window.localStorage.getItem("mx_rhs_collapsed") === "true",
             leftDisabled: false,