diff --git a/src/main/java/com/bunq/sdk/json/MonetaryAccountReferenceTypeAdapter.java b/src/main/java/com/bunq/sdk/json/MonetaryAccountReferenceTypeAdapter.java
index dec9c392..da4336c5 100644
--- a/src/main/java/com/bunq/sdk/json/MonetaryAccountReferenceTypeAdapter.java
+++ b/src/main/java/com/bunq/sdk/json/MonetaryAccountReferenceTypeAdapter.java
@@ -17,8 +17,12 @@ public class MonetaryAccountReferenceTypeAdapter extends TypeAdapter<MonetaryAcc
 
   @Override
   public void write(JsonWriter out, MonetaryAccountReference value) throws IOException {
-    if (value == null || value.getPointer() == null) {
+    if (value == null || value.isAllFieldNull()) {
       out.nullValue();
+    } else if (value.getLabelMonetaryAccount() != null) {
+      LabelMonetaryAccount labelMonetaryAccount = value.getLabelMonetaryAccount();
+
+      BunqGsonBuilder.buildDefault().create().toJson(labelMonetaryAccount, LabelMonetaryAccount.class, out);
     } else {
       Pointer pointer = value.getPointer();
 
diff --git a/src/test/java/com/bunq/sdk/model/generated/endpoint/PaymentTest.java b/src/test/java/com/bunq/sdk/model/generated/endpoint/PaymentTest.java
index f50efd21..fd5b4083 100644
--- a/src/test/java/com/bunq/sdk/model/generated/endpoint/PaymentTest.java
+++ b/src/test/java/com/bunq/sdk/model/generated/endpoint/PaymentTest.java
@@ -28,18 +28,31 @@ public class PaymentTest extends BunqSdkTestBase {
   private static final int paymentIdwithGeolocation = Config.getPaymentIdWithGeolocation();
   private static final Pointer counterPartyAliasOther = Config.getCounterPartyAliasOther();
   private static final Pointer counterPartyAliasSelf = Config.getCounterPartyAliasSelf();
-
   private static final ApiContext apiContext = getApiContext();
 
+  /**
+   * Payment field value constants.
+   */
   private static final String AMOUNT_EUR = "0.01";
   private static final String CURRENCY = "EUR";
   private static final String PAYMENT_DESCRIPTION = "Java test Payment";
-  private static final int PAGE_SIZE = 200;
+  private static final int PAGE_SIZE = 100;
 
+  /**
+   * Number constants.
+   */
   private static final int NUMBER_ZERO = 0;
 
+  /**
+   * Comparison constants.
+   */
   private static final int COMPARE_EQUAL = 0;
 
+  /**
+   * String constants.
+   */
+  private static final String STRING_NULL = "null";
+
   /**
    * Tests making a payment to another sandbox user
    *
@@ -89,8 +102,11 @@ public void counterPartyAliasNotNullTest() {
     for (Payment payment : allPayment) {
       Assert.assertNotNull(payment.getCounterpartyAlias());
       Assert.assertFalse(payment.getCounterpartyAlias().isAllFieldNull());
+      Assert.assertNotEquals(payment.getCounterpartyAlias().toString(), STRING_NULL);
     }
+  }
 
+  @Test
   public void getPaymentWithGeolocationTest() {
     Assume.assumeFalse(Integer.compare(paymentIdwithGeolocation, NUMBER_ZERO) == COMPARE_EQUAL);
 
@@ -98,7 +114,6 @@ public void getPaymentWithGeolocationTest() {
 
     Assert.assertNotNull(payment.getGeolocation());
     Assert.assertFalse(payment.getGeolocation().isAllFieldNull());
-
   }
 
 }