diff --git a/src/client/action/room.js b/src/client/action/room.js
index 90b74810..767914b5 100644
--- a/src/client/action/room.js
+++ b/src/client/action/room.js
@@ -12,7 +12,7 @@ function addRoomToMDirect(mx, roomId, userId) {
   const mDirectsEvent = mx.getAccountData('m.direct');
   let userIdToRoomIds = {};
 
-  if (typeof mDirectsEvent !== 'undefined') userIdToRoomIds = mDirectsEvent.getContent();
+  if (typeof mDirectsEvent !== 'undefined') userIdToRoomIds = structuredClone(mDirectsEvent.getContent());
 
   // remove it from the lists of any others users
   // (it can only be a DM room for one person)