diff --git a/Libraries/Foundation/Kit/Sources/Classes/MockURLProtocol.swift b/Libraries/Foundation/Kit/Sources/Classes/MockURLProtocol.swift
index 805cc8d..18cdb72 100644
--- a/Libraries/Foundation/Kit/Sources/Classes/MockURLProtocol.swift
+++ b/Libraries/Foundation/Kit/Sources/Classes/MockURLProtocol.swift
@@ -66,12 +66,12 @@ extension MockURLProtocol {
         
         // MARK: Constants
         public let statusCode: Int
-        public let object: any Encodable
+        public let object: (any Encodable)?
         
         // MARK: Initialisers
         public init(
             statusCode: Int,
-            object: any Codable
+            object: (any Codable)? = nil
         ) {
             self.statusCode = statusCode
             self.object = object
@@ -80,7 +80,9 @@ extension MockURLProtocol {
         // MARK: Computed
         var data: Data? {
             get throws {
-                try JSONEncoder().encode(object)
+                guard let object else { return nil }
+
+                return try JSONEncoder.default.encode(object)
             }
         }