diff --git a/core/store/dist/src/main/java/org/onlab/onos/store/device/impl/InternalPortStatusEvent.java b/core/store/dist/src/main/java/org/onlab/onos/store/device/impl/InternalPortStatusEvent.java
index 7d3854b..fd154da 100644
--- a/core/store/dist/src/main/java/org/onlab/onos/store/device/impl/InternalPortStatusEvent.java
+++ b/core/store/dist/src/main/java/org/onlab/onos/store/device/impl/InternalPortStatusEvent.java
@@ -5,6 +5,8 @@
 import org.onlab.onos.net.provider.ProviderId;
 import org.onlab.onos.store.common.impl.Timestamped;
 
+import com.google.common.base.MoreObjects;
+
 /**
  * Information published by GossipDeviceStore to notify peers of a port
  * status change event.
@@ -36,6 +38,15 @@
         return portDescription;
     }
 
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(getClass())
+                .add("providerId", providerId)
+                .add("deviceId", deviceId)
+                .add("portDescription", portDescription)
+                .toString();
+    }
+
     // for serializer
     protected InternalPortStatusEvent() {
         this.providerId = null;