diff --git a/server/src/main/java/io/druid/segment/realtime/appenderator/SegmentWithState.java b/server/src/main/java/io/druid/segment/realtime/appenderator/SegmentWithState.java
index 3a89c1593cf..b6fd84fc41d 100644
--- a/server/src/main/java/io/druid/segment/realtime/appenderator/SegmentWithState.java
+++ b/server/src/main/java/io/druid/segment/realtime/appenderator/SegmentWithState.java
@@ -150,4 +150,13 @@ public class SegmentWithState
         to
     );
   }
+
+  @Override
+  public String toString()
+  {
+    return "SegmentWithState{" +
+           "segmentIdentifier=" + segmentIdentifier +
+           ", state=" + state +
+           '}';
+  }
 }