1 files changed, 1 insertions, 1 deletions
diff --git a/configserver/src/main/java/com/yahoo/vespa/config/server/session/SessionPreparer.java b/configserver/src/main/java/com/yahoo/vespa/config/server/session/SessionPreparer.java
index 94745be9d2a..ae87a0dd182 100644
--- a/configserver/src/main/java/com/yahoo/vespa/config/server/session/SessionPreparer.java
+++ b/configserver/src/main/java/com/yahoo/vespa/config/server/session/SessionPreparer.java
@@ -394,7 +394,7 @@ public class SessionPreparer {
             zkDeployer.deploy(applicationPackage, fileRegistryMap, allocatedHosts);
             // Note: When changing the below you need to also change similar calls in SessionRepository.createSessionFromExisting()
             zooKeeperClient.writeApplicationId(applicationId);
-            zooKeeperClient.writeApplicationPackageReference(fileReference);
+            zooKeeperClient.writeApplicationPackageReference(Optional.of(fileReference));
             zooKeeperClient.writeVespaVersion(vespaVersion);
             zooKeeperClient.writeDockerImageRepository(dockerImageRepository);
             zooKeeperClient.writeAthenzDomain(athenzDomain);