diff --git a/matrixbot/commands.py b/matrixbot/commands.py
index 9e18777..3ada0ee 100644
--- a/matrixbot/commands.py
+++ b/matrixbot/commands.py
@@ -3729,7 +3729,7 @@ async def cmd_cancel(client: AsyncClient, room_id: str, sender: str, args: str):
 
     if not is_elevated(client, room_id, sender):
         if cancelled:
-            await send_text(client, room_id, f"✅ Your Blackjack game has been cancelled.")
+            await send_text(client, room_id, "✅ Your Blackjack game has been cancelled.")
         else:
             await send_text(client, room_id,
                 "No active game to cancel. (Cancelling room games requires PL50+.)")