diff --git a/invoicedapi.tests/Entities/CustomerTest.cs b/invoicedapi.tests/Entities/CustomerTest.cs
index d25c78b..88a128c 100644
--- a/invoicedapi.tests/Entities/CustomerTest.cs
+++ b/invoicedapi.tests/Entities/CustomerTest.cs
@@ -812,6 +812,7 @@ public void TestNewTask()
 
 
             const string jsonRequest = @"{
+                'customer_id': 1234,
                 'name': 'Example',
                 'action': 'review'
                 }";