diff --git a/persistence-service-v1/persistence-service-shared-api-v1/src/main/java/com/iqser/red/service/persistence/service/v1/api/shared/model/redactionlog/RedactionLogEntry.java b/persistence-service-v1/persistence-service-shared-api-v1/src/main/java/com/iqser/red/service/persistence/service/v1/api/shared/model/redactionlog/RedactionLogEntry.java
index fe71c8605..e54459cff 100644
--- a/persistence-service-v1/persistence-service-shared-api-v1/src/main/java/com/iqser/red/service/persistence/service/v1/api/shared/model/redactionlog/RedactionLogEntry.java
+++ b/persistence-service-v1/persistence-service-shared-api-v1/src/main/java/com/iqser/red/service/persistence/service/v1/api/shared/model/redactionlog/RedactionLogEntry.java
@@ -70,8 +70,10 @@ public class RedactionLogEntry {
     @Builder.Default
     private List<ManualChange> manualChanges = new ArrayList<>();
 
+    @Builder.Default
     private Set<Engine> engines = new HashSet<>();
 
+    @Builder.Default
     private Set<String> reference = new HashSet<>();
 
     @Builder.Default