diff --git a/internal/manager/config/defaults.go b/internal/manager/config/defaults.go
index da4619eb..24031e25 100644
--- a/internal/manager/config/defaults.go
+++ b/internal/manager/config/defaults.go
@@ -4,6 +4,7 @@ import (
 	"runtime"
 	"time"
 
+	"projects.blender.org/studio/flamenco/internal/manager/eventbus"
 	shaman_config "projects.blender.org/studio/flamenco/pkg/shaman/config"
 )
 
@@ -39,6 +40,13 @@ var defaultConfig = Conf{
 
 		BlocklistThreshold:         3,
 		TaskFailAfterSoftFailCount: 3,
+
+		MQTT: MQTTConfig{
+			Client: eventbus.MQTTClientConfig{
+				ClientID:    eventbus.MQTTDefaultClientID,
+				TopicPrefix: eventbus.MQTTDefaultTopicPrefix,
+			},
+		},
 	},
 
 	Variables: map[string]Variable{
diff --git a/internal/manager/eventbus/mqtt_client.go b/internal/manager/eventbus/mqtt_client.go
index d361084a..50ef496e 100644
--- a/internal/manager/eventbus/mqtt_client.go
+++ b/internal/manager/eventbus/mqtt_client.go
@@ -18,7 +18,9 @@ import (
 )
 
 const (
-	defaultClientID   = "flamenco"
+	MQTTDefaultTopicPrefix = "flamenco"
+	MQTTDefaultClientID    = "flamenco"
+
 	keepAlive         = 30 // seconds
 	connectRetryDelay = 10 * time.Second
 
@@ -63,7 +65,7 @@ func NewMQTTForwarder(config MQTTClientConfig) *MQTTForwarder {
 		return nil
 	}
 	if config.ClientID == "" {
-		config.ClientID = defaultClientID
+		config.ClientID = MQTTDefaultClientID
 	}
 
 	brokerURL, err := url.Parse(config.BrokerURL)