diff --git a/Xero.NetStandard.OAuth2.Test/Api/AccountingApiTests.cs b/Xero.NetStandard.OAuth2.Test/Api/AccountingApiTests.cs
index 164c410a..1ca97865 100755
--- a/Xero.NetStandard.OAuth2.Test/Api/AccountingApiTests.cs
+++ b/Xero.NetStandard.OAuth2.Test/Api/AccountingApiTests.cs
@@ -2080,7 +2080,8 @@ public async Task GetOverpaymentsTest()
       string order = AutoFaker.Generate<string>();
       int? page = AutoFaker.Generate<int?>();
       int? unitdp = AutoFaker.Generate<int?>();
-      var response = await instance.GetOverpaymentsAsync(accessToken, xeroTenantId, ifModifiedSince, where, order, page, unitdp);
+      List<string> references = AutoFaker.Generate<List<string>>();
+      var response = await instance.GetOverpaymentsAsync(accessToken, xeroTenantId, ifModifiedSince, where, order, page, references, unitdp);
       Assert.IsType<Overpayments>(response);
     }