diff --git a/docs/type-system/schema.md b/docs/type-system/schema.md
index 08ee12f..e3ae6e0 100644
--- a/docs/type-system/schema.md
+++ b/docs/type-system/schema.md
@@ -62,7 +62,7 @@ $mutationType = new ObjectType([
                 'episode' => $episodeEnum,
                 'review' => $reviewInputObject
             ],
-            'resolve' => function($val, $args) {
+            'resolve' => function($rootValue, $args) {
                 // TODOC
             }
         ]
diff --git a/examples/01-blog/Blog/Type/QueryType.php b/examples/01-blog/Blog/Type/QueryType.php
index ff85577..b7d8075 100644
--- a/examples/01-blog/Blog/Type/QueryType.php
+++ b/examples/01-blog/Blog/Type/QueryType.php
@@ -57,8 +57,8 @@ class QueryType extends ObjectType
                 ],
                 'hello' => Type::string()
             ],
-            'resolveField' => function($val, $args, $context, ResolveInfo $info) {
-                return $this->{$info->fieldName}($val, $args, $context, $info);
+            'resolveField' => function($rootValue, $args, $context, ResolveInfo $info) {
+                return $this->{$info->fieldName}($rootValue, $args, $context, $info);
             }
         ];
         parent::__construct($config);
diff --git a/tests/Executor/DeferredFieldsTest.php b/tests/Executor/DeferredFieldsTest.php
index a4021d2..6879e8d 100644
--- a/tests/Executor/DeferredFieldsTest.php
+++ b/tests/Executor/DeferredFieldsTest.php
@@ -185,7 +185,7 @@ class DeferredFieldsTest extends TestCase
             'fields' => [
                 'topStories'       => [
                     'type'    => Type::listOf($this->storyType),
-                    'resolve' => function ($val, $args, $context, ResolveInfo $info) {
+                    'resolve' => function ($rootValue, $args, $context, ResolveInfo $info) {
                         $this->paths[] = $info->path;
 
                         return Utils::filter(
@@ -198,7 +198,7 @@ class DeferredFieldsTest extends TestCase
                 ],
                 'featuredCategory' => [
                     'type'    => $this->categoryType,
-                    'resolve' => function ($val, $args, $context, ResolveInfo $info) {
+                    'resolve' => function ($rootValue, $args, $context, ResolveInfo $info) {
                         $this->paths[] = $info->path;
 
                         return $this->categoryDataSource[0];
@@ -206,7 +206,7 @@ class DeferredFieldsTest extends TestCase
                 ],
                 'categories'       => [
                     'type'    => Type::listOf($this->categoryType),
-                    'resolve' => function ($val, $args, $context, ResolveInfo $info) {
+                    'resolve' => function ($rootValue, $args, $context, ResolveInfo $info) {
                         $this->paths[] = $info->path;
 
                         return $this->categoryDataSource;
@@ -401,7 +401,7 @@ class DeferredFieldsTest extends TestCase
                 return [
                     'sync'         => [
                         'type'    => Type::string(),
-                        'resolve' => function ($v, $a, $c, ResolveInfo $info) {
+                        'resolve' => function ($rootValue, $a, $c, ResolveInfo $info) {
                             $this->paths[] = $info->path;
 
                             return 'sync';
@@ -409,7 +409,7 @@ class DeferredFieldsTest extends TestCase
                     ],
                     'deferred'     => [
                         'type'    => Type::string(),
-                        'resolve' => function ($v, $a, $c, ResolveInfo $info) {
+                        'resolve' => function ($rootValue, $a, $c, ResolveInfo $info) {
                             $this->paths[] = $info->path;
 
                             return new Deferred(function () use ($info) {
@@ -421,7 +421,7 @@ class DeferredFieldsTest extends TestCase
                     ],
                     'nest'         => [
                         'type'    => $complexType,
-                        'resolve' => function ($v, $a, $c, ResolveInfo $info) {
+                        'resolve' => function ($rootValue, $a, $c, ResolveInfo $info) {
                             $this->paths[] = $info->path;
 
                             return [];
@@ -429,7 +429,7 @@ class DeferredFieldsTest extends TestCase
                     ],
                     'deferredNest' => [
                         'type'    => $complexType,
-                        'resolve' => function ($v, $a, $c, ResolveInfo $info) {
+                        'resolve' => function ($rootValue, $a, $c, ResolveInfo $info) {
                             $this->paths[] = $info->path;
 
                             return new Deferred(function () use ($info) {