diff --git a/proposals/1501-room-version-upgrades.md b/proposals/1501-room-version-upgrades.md
index 37eeb592d..55af33411 100644
--- a/proposals/1501-room-version-upgrades.md
+++ b/proposals/1501-room-version-upgrades.md
@@ -48,6 +48,7 @@ When this is called, the server:
        "state_key": "",
        "room_id": "!QtykxKocfsgujksjgd:matrix.org",
        "content": {
+           "version": "2",
            "predecessor": {
                "room_id": "!cURbaf:matrix.org",
                "event_id": "$1235135aksjgdkg:matrix.org"