diff --git a/src/rooms/commands/OnJoinCommand.ts b/src/rooms/commands/OnJoinCommand.ts
index 279f70a..eaefdec 100644
--- a/src/rooms/commands/OnJoinCommand.ts
+++ b/src/rooms/commands/OnJoinCommand.ts
@@ -43,10 +43,9 @@ export class OnJoinCommand extends Command<CardGameState, {
     if (seat != undefined) {
       seat = +seat
       if (seatSet.has(seat)) {
-        seatSet.delete(seat)
-        idx = seatSet.values().next().value
-      } else {
         idx = seat;
+      } else {
+        idx = seatSet.values().next().value
       }
     } else {
       idx = seatSet.values().next().value