diff --git a/docs/how-to-test-a-contract.md b/docs/how-to-test-a-contract.md
index 422de7a66..f2f500464 100644
--- a/docs/how-to-test-a-contract.md
+++ b/docs/how-to-test-a-contract.md
@@ -156,6 +156,7 @@ const nextInstance = instance.next(
     }
 )
 ```
+In this context the `next` is designed to create a shallow copy of the specified properties, allowing for selective copy rather than a complete copy of the entire contract instance.
 
 ## Run tests