diff --git a/broker/src/main/java/org/dna/mqtt/moquette/messaging/spi/impl/subscriptions/Subscription.java b/broker/src/main/java/org/dna/mqtt/moquette/messaging/spi/impl/subscriptions/Subscription.java
index 6f2a1abb..64429b62 100644
--- a/broker/src/main/java/org/dna/mqtt/moquette/messaging/spi/impl/subscriptions/Subscription.java
+++ b/broker/src/main/java/org/dna/mqtt/moquette/messaging/spi/impl/subscriptions/Subscription.java
@@ -85,4 +85,9 @@ public class Subscription implements Serializable {
     boolean match(String topic) {
         return this.topic.equals(topic);
     }
+    
+    @Override
+    public String toString() {
+        return String.format("[t:%s, cliID: %s, qos: %s]", this.topic, this.clientId, this.requestedQos);
+    }
 }