diff --git a/datatypes/src/main/java/org/hyperledger/besu/datatypes/AccountOverride.java b/datatypes/src/main/java/org/hyperledger/besu/datatypes/AccountOverride.java
index 55ee71fde15..e33f6feef54 100644
--- a/datatypes/src/main/java/org/hyperledger/besu/datatypes/AccountOverride.java
+++ b/datatypes/src/main/java/org/hyperledger/besu/datatypes/AccountOverride.java
@@ -85,6 +85,7 @@ public Optional<Map<String, String>> getStateDiff() {
   }
 
   /** Builder class for Account overrides */
+  @JsonIgnoreProperties(ignoreUnknown = true)
   public static class Builder {
     private Optional<Wei> balance = Optional.empty();
     private Optional<Long> nonce = Optional.empty();