diff --git a/bot/logic/close.go b/bot/logic/close.go
index c6efd7a..f65a0a4 100644
--- a/bot/logic/close.go
+++ b/bot/logic/close.go
@@ -40,6 +40,19 @@ func CloseTicket(ctx context.Context, cmd registry.CommandContext, reason *strin
 		return
 	}
 
+	lock, err := redis.TakeTicketCloseLock(ctx, uint64(ticket.Id))
+	if err != nil {
+		cmd.HandleError(err)
+		return
+	}
+
+	defer func() {
+		_, unlockErr := lock.UnlockContext(ctx)
+		if unlockErr != nil {
+			sentry.ErrorWithContext(unlockErr, cmd.ToErrorContext())
+		}
+	}()
+
 	defer func() {
 		if !success {
 			if err := dbclient.Client.AutoCloseExclude.Exclude(ctx, ticket.GuildId, ticket.Id); err != nil {
diff --git a/bot/redis/openlock.go b/bot/redis/openlock.go
index 7b83b74..db41909 100644
--- a/bot/redis/openlock.go
+++ b/bot/redis/openlock.go
@@ -24,3 +24,11 @@ func TakeTicketOpenLock(ctx context.Context, guildId uint64) (Mutex, error) {
 
 	return mu, nil
 }
+
+func TakeTicketCloseLock(ctx context.Context, ticketId uint64) (Mutex, error) {
+	mu := rs.NewMutex(fmt.Sprintf("tickets:closelock:%d", ticketId), redsync.WithExpiry(TicketOpenLockExpiry))
+	if err := mu.LockContext(ctx); err != nil {
+		return nil, err
+	}
+	return mu, nil
+}