diff --git a/corda/workflows/src/main/java/djmil/cordacheckers/gamestate/CommitTrxResponder.java b/corda/workflows/src/main/java/djmil/cordacheckers/gamestate/CommitTrxResponder.java
index e14e227..6e0b276 100644
--- a/corda/workflows/src/main/java/djmil/cordacheckers/gamestate/CommitTrxResponder.java
+++ b/corda/workflows/src/main/java/djmil/cordacheckers/gamestate/CommitTrxResponder.java
@@ -44,6 +44,10 @@ public class CommitTrxResponder implements ResponderFlow {
                 log.info("Approval for " + trxToValidate.getId());
             };
 
+            if (utxoLedgerService == null) {
+                 log.error("utxoLedgerService is NULL");
+                 return;
+            }
             UtxoSignedTransaction finalizedSignedTransaction = this.utxoLedgerService
                     .receiveFinality(session, txValidator)
                     .getTransaction();