diff --git a/cli/src/main/java/org/onlab/onos/cli/net/ClustersListCommand.java b/cli/src/main/java/org/onlab/onos/cli/net/ClustersListCommand.java
index d2d452f..2b2953b 100644
--- a/cli/src/main/java/org/onlab/onos/cli/net/ClustersListCommand.java
+++ b/cli/src/main/java/org/onlab/onos/cli/net/ClustersListCommand.java
@@ -2,6 +2,7 @@
 
 import com.google.common.collect.Lists;
 import org.apache.karaf.shell.commands.Command;
+import org.onlab.onos.cli.Comparators;
 import org.onlab.onos.net.topology.TopologyCluster;
 
 import java.util.Collections;