diff --git a/src/Illuminate/Http/Resources/Json/Resource.php b/src/Illuminate/Http/Resources/Json/Resource.php
index 6c842f970a37..316b26e29e83 100644
--- a/src/Illuminate/Http/Resources/Json/Resource.php
+++ b/src/Illuminate/Http/Resources/Json/Resource.php
@@ -91,9 +91,7 @@ public function resolve($request = null)
             $request = $request ?: Container::getInstance()->make('request')
         );
 
-        if (is_array($data)) {
-            $data = $data;
-        } elseif ($data instanceof Arrayable || $data instanceof Collection) {
+        if ($data instanceof Arrayable || $data instanceof Collection) {
             $data = $data->toArray();
         } elseif ($data instanceof JsonSerializable) {
             $data = $data->jsonSerialize();