diff --git a/cli/src/main/java/org/onlab/onos/cli/net/ClusterLinksCommand.java b/cli/src/main/java/org/onlab/onos/cli/net/ClusterLinksCommand.java
index 2bbfb46..ed5be77 100644
--- a/cli/src/main/java/org/onlab/onos/cli/net/ClusterLinksCommand.java
+++ b/cli/src/main/java/org/onlab/onos/cli/net/ClusterLinksCommand.java
@@ -5,6 +5,7 @@
 import org.onlab.onos.net.Link;
 import org.onlab.onos.net.topology.TopologyCluster;
 
+import static org.onlab.onos.cli.net.LinksListCommand.json;
 import static org.onlab.onos.cli.net.LinksListCommand.linkString;
 import static org.onlab.onos.net.topology.ClusterId.clusterId;
 
@@ -26,6 +27,8 @@
         TopologyCluster cluster = service.getCluster(topology, clusterId(cid));
         if (cluster == null) {
             error("No such cluster %s", cid);
+        } else if (outputJson()) {
+            print("%s", json(service.getClusterLinks(topology, cluster)));
         } else {
             for (Link link : service.getClusterLinks(topology, cluster)) {
                 print(linkString(link));