Handle default values as null in summarizing bills

1 files changed, 2 insertions, 1 deletions

diff --git a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/restapi/billing/BillingApiHandlerV2.java b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/restapi/billing/BillingApiHandlerV2.java
index 7a7ef080e17..eacc156f3e0 100644
--- a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/restapi/billing/BillingApiHandlerV2.java
+++ b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/restapi/billing/BillingApiHandlerV2.java
@@ -611,7 +611,8 @@ public class BillingApiHandlerV2 extends RestApiRequestHandler<BillingApiHandler
 
     private void toSlime(Cursor slime, Bill.ItemKey key) {
         key.keys().forEach((keyType, keyValue) -> {
-            slime.setString(keyType.name(), keyValue.toString());
+            if (keyValue == null) slime.setNix(keyType.name());
+            else slime.setString(keyType.name(), keyValue.toString());
         });
     }