diff --git a/proposals/4301-event-capability-negotiation.md b/proposals/4301-event-capability-negotiation.md
index 9c234528b..52ff70ba3 100644
--- a/proposals/4301-event-capability-negotiation.md
+++ b/proposals/4301-event-capability-negotiation.md
@@ -49,7 +49,7 @@ properties in `content`:
     // Properties from MSC4300
     "m.request.status": {
       "from_device": "RJYKSTBOIE",
-      "lifetime": 90_000, // 90s
+      "lifetime": 90000, // 90s
     },
     // I'd like to send any of these events into this room.
     // Which of these do you understand?