diff --git a/bot/main.go b/bot/main.go
index 9ec7520..9eb43f3 100644
--- a/bot/main.go
+++ b/bot/main.go
@@ -28,7 +28,14 @@ type Bot struct {
 
 type worker struct {
 	client         *twitch.Client
-	joinedChannels []string
+	joinedChannels map[string]bool
+}
+
+func newWorker(client *twitch.Client) *worker {
+	return &worker{
+		client:         client,
+		joinedChannels: map[string]bool{},
+	}
 }
 
 // NewBot create new bot instance
@@ -57,7 +64,7 @@ func (b *Bot) Say(channel, text string) {
 func (b *Bot) Connect() {
 	b.startTime = time.Now()
 	client := b.newClient()
-	b.initialJoins()
+	go b.startJoinLoop()
 
 	if strings.HasPrefix(b.cfg.Username, "justinfan") {
 		log.Info("[bot] joining as anonymous user")
@@ -68,6 +75,18 @@ func (b *Bot) Connect() {
 	log.Fatal(client.Connect())
 }
 
+// constantly join channels to rejoin some channels that got unbanned over time
+func (b *Bot) startJoinLoop() {
+	for {
+		for _, channel := range b.channels {
+			b.Join(channel.Login)
+		}
+
+		time.Sleep(time.Hour * 1)
+		log.Info("[bot] running hourly join loop")
+	}
+}
+
 func (b *Bot) Part(channelNames ...string) {
 	for _, channelName := range channelNames {
 		log.Info("[bot] leaving " + channelName)
@@ -80,13 +99,21 @@ func (b *Bot) Part(channelNames ...string) {
 
 func (b *Bot) Join(channelNames ...string) {
 	for _, channel := range channelNames {
+		channel = strings.ToLower(channel)
 
 		joined := false
+
 		for _, worker := range b.worker {
+			if _, ok := worker.joinedChannels[channel]; ok {
+				// already joined but join again in case it was a temporary ban
+				b.Join(channel)
+				return
+			}
+
 			if len(worker.joinedChannels) < 50 {
 				log.Info("[bot] joining " + channel)
 				worker.client.Join(channel)
-				worker.joinedChannels = append(worker.joinedChannels, channel)
+				worker.joinedChannels[channel] = true
 				joined = true
 				break
 			}
@@ -105,7 +132,7 @@ func (b *Bot) newClient() *twitch.Client {
 		client.SetJoinRateLimiter(twitch.CreateVerifiedRateLimiter())
 	}
 
-	b.worker = append(b.worker, &worker{client, []string{}})
+	b.worker = append(b.worker, newWorker(client))
 	log.Infof("[bot] creating new twitch connection, new total: %d", len(b.worker))
 
 	client.OnPrivateMessage(b.handlePrivateMessage)
@@ -115,12 +142,6 @@ func (b *Bot) newClient() *twitch.Client {
 	return client
 }
 
-func (b *Bot) initialJoins() {
-	for _, channel := range b.channels {
-		b.Join(channel.Login)
-	}
-}
-
 func (b *Bot) handlePrivateMessage(message twitch.PrivateMessage) {
 	b.handlePrivateMessageCommands(message)