diff --git a/src/main/java/io/ebeaninternal/server/core/PersistDeferredRelationship.java b/src/main/java/io/ebeaninternal/server/core/PersistDeferredRelationship.java
index a9eb5ba03..790dc691a 100644
--- a/src/main/java/io/ebeaninternal/server/core/PersistDeferredRelationship.java
+++ b/src/main/java/io/ebeaninternal/server/core/PersistDeferredRelationship.java
@@ -20,7 +20,6 @@ public class PersistDeferredRelationship {
   private final EntityBean bean;
 
   public PersistDeferredRelationship(SpiEbeanServer ebeanServer, BeanDescriptor<?> beanDescriptor, EntityBean assocBean, ImportedId importedId, EntityBean bean) {
-
     this.ebeanServer = ebeanServer;
     this.beanDescriptor = beanDescriptor;
     this.assocBean = assocBean;
@@ -41,13 +40,11 @@ public class PersistDeferredRelationship {
 
     // bind the set clause for the importedId
     int pos = importedId.bind(1, sqlUpdate, assocBean);
-
     // bind the where clause for the bean
     Object[] idValues = beanDescriptor.getIdBinder().getIdValues(bean);
     for (int j = 0; j < idValues.length; j++) {
       sqlUpdate.setParameter(pos + j, idValues[j]);
     }
-
     ebeanServer.execute(sqlUpdate, transaction);
   }
 }
diff --git a/src/main/java/io/ebeaninternal/server/transaction/JdbcTransaction.java b/src/main/java/io/ebeaninternal/server/transaction/JdbcTransaction.java
index f1d9cb7f8..3accea486 100644
--- a/src/main/java/io/ebeaninternal/server/transaction/JdbcTransaction.java
+++ b/src/main/java/io/ebeaninternal/server/transaction/JdbcTransaction.java
@@ -785,6 +785,7 @@ class JdbcTransaction implements SpiTransaction, TxnProfileEventCodes {
       for (PersistDeferredRelationship deferred : deferredList) {
         deferred.execute(this);
       }
+      batchFlush();
       deferredList.clear();
     }
   }
diff --git a/src/test/java/org/tests/basic/one2one/TestOne2OneBookingInvoice.java b/src/test/java/org/tests/basic/one2one/TestOne2OneBookingInvoice.java
index 59d407e55..48ad933cf 100644
--- a/src/test/java/org/tests/basic/one2one/TestOne2OneBookingInvoice.java
+++ b/src/test/java/org/tests/basic/one2one/TestOne2OneBookingInvoice.java
@@ -14,7 +14,6 @@ public class TestOne2OneBookingInvoice extends BaseTestCase {
   public void test() {
 
     Booking b = new Booking(3000L);
-
     Invoice ai = new Invoice();
     Invoice ci = new Invoice();