diff --git a/eloquent-mutators.md b/eloquent-mutators.md
index 6073156405d..e7c04709657 100644
--- a/eloquent-mutators.md
+++ b/eloquent-mutators.md
@@ -316,6 +316,8 @@ When casting to value objects, any changes made to the value object will automat
 
     $user->save();
 
+> {tip} If you plan to serialize your Eloquent models containing value objects to JSON or arrays, you should implement the `Illuminate\Contracts\Support\Arrayable` and `JsonSerializable` interfaces on the value object.
+
 #### Inbound Casting
 
 Occasionally, you may need to write a custom cast that only transforms values that are being set on the model and does not perform any operations when attributes are being retrieved from the model. A classic example of an inbound only cast is a "hashing" cast. Inbound only custom casts should implement the `CastsInboundAttributes` interface, which only requires a `set` method to be defined.