diff --git a/src/main/java/org/apache/cassandra/db/compaction/CompactionManager.java b/src/main/java/org/apache/cassandra/db/compaction/CompactionManager.java
index 0afdc18..f1b0e20 100644
--- a/src/main/java/org/apache/cassandra/db/compaction/CompactionManager.java
+++ b/src/main/java/org/apache/cassandra/db/compaction/CompactionManager.java
@@ -75,7 +75,7 @@ public class CompactionManager extends MetricsMBean implements CompactionManager
             result.put("keyspace", compaction.getString("ks"));
             result.put("columnfamily", compaction.getString("cf"));
             result.put("unit", compaction.getString("unit"));
-            result.put("compactionId", "<none>");
+            result.put("compactionId", (compaction.containsKey("id"))? compaction.getString("id") : "<none>");
             results.add(result);
         }
         return results;