1 files changed, 6 insertions, 1 deletions
diff --git a/config-model-api/src/main/java/com/yahoo/config/model/api/ApplicationClusterEndpoint.java b/config-model-api/src/main/java/com/yahoo/config/model/api/ApplicationClusterEndpoint.java
index a879b335a34..99bf768f67e 100644
--- a/config-model-api/src/main/java/com/yahoo/config/model/api/ApplicationClusterEndpoint.java
+++ b/config-model-api/src/main/java/com/yahoo/config/model/api/ApplicationClusterEndpoint.java
@@ -137,7 +137,7 @@ public class ApplicationClusterEndpoint {
         }
     }
 
-    public static class DnsName {
+    public static class DnsName implements Comparable<DnsName> {
 
         private static final int MAX_LABEL_LENGTH = 63;
 
@@ -210,5 +210,10 @@ public class ApplicationClusterEndpoint {
                    "name='" + name + '\'' +
                    '}';
         }
+
+        @Override
+        public int compareTo(DnsName o) {
+            return name.compareTo(o.name);
+        }
     }
 }