diff --git a/Generator/Normalizer/NormalizerGenerator.php b/Generator/Normalizer/NormalizerGenerator.php
index c2203fc..57d2b55 100644
--- a/Generator/Normalizer/NormalizerGenerator.php
+++ b/Generator/Normalizer/NormalizerGenerator.php
@@ -66,8 +66,8 @@ protected function createSupportsNormalizationMethod($modelFqdn)
     /**
      * Create the normalization method.
      *
-     * @param string $modelFqdn
-     * @param Context $context
+     * @param string     $modelFqdn
+     * @param Context    $context
      * @param ClassGuess $classGuess
      *
      * @return Stmt\ClassMethod
diff --git a/Guesser/Guess/MultipleType.php b/Guesser/Guess/MultipleType.php
index 48ee554..1458a14 100644
--- a/Guesser/Guess/MultipleType.php
+++ b/Guesser/Guess/MultipleType.php
@@ -51,16 +51,18 @@ public function getTypes()
 
     /**
      * We have to place mixed normalization path at the last.
+     *
      * @return Type[]
      */
     protected function getTypesSorted()
     {
         $types = $this->getTypes();
-        usort($types, function($first, $second) {
-            /** @var Type $first */
-            /** @var Type $second */
+        usort($types, function ($first, $second) {
+            /* @var Type $first */
+            /* @var Type $second */
             return $first->name == 'mixed' ? 1 : 0;
         });
+
         return $types;
     }
 
@@ -120,10 +122,9 @@ public function createDenormalizationStatement(Context $context, Expr $input): a
             $condition = $type->createConditionStatement($input);
             $statement = array_merge($typeStatements, [new Expr\Assign($output, $typeOutput)]);
 
-            if($ifStmt === null) {
+            if ($ifStmt === null) {
                 $ifStmt = new Stmt\If_($condition, ['stmts' => $statement]);
-            }
-            else {
+            } else {
                 $ifStmt->elseifs[] = new Stmt\ElseIf_($condition, $statement);
             }
         }
@@ -150,10 +151,9 @@ public function createNormalizationStatement(Context $context, Expr $input): arr
             $condition = $type->createNormalizationConditionStatement($input);
             $statement = array_merge($typeStatements, [new Expr\Assign($output, $typeOutput)]);
 
-            if($ifStmt === null) {
+            if ($ifStmt === null) {
                 $ifStmt = new Stmt\If_($condition, ['stmts' => $statement]);
-            }
-            else {
+            } else {
                 $ifStmt->elseifs[] = new Stmt\ElseIf_($condition, $statement);
             }
         }
diff --git a/Tests/fixtures/one-of/.jane b/Tests/fixtures/one-of/.jane
new file mode 100644
index 0000000..5714e73
--- /dev/null
+++ b/Tests/fixtures/one-of/.jane
@@ -0,0 +1,8 @@
+<?php
+
+return [
+    'json-schema-file' => __DIR__ . '/schema.json',
+    'root-class' => 'Test',
+    'namespace' => 'Jane\JsonSchema\Tests\Expected',
+    'directory' => __DIR__ . '/generated',
+];
diff --git a/Tests/fixtures/one-of/expected/Model/Foo.php b/Tests/fixtures/one-of/expected/Model/Foo.php
new file mode 100644
index 0000000..88486f3
--- /dev/null
+++ b/Tests/fixtures/one-of/expected/Model/Foo.php
@@ -0,0 +1,39 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file has been auto generated by Jane,
+ *
+ * Do no edit it directly.
+ */
+
+namespace Jane\JsonSchema\Tests\Expected\Model;
+
+class Foo
+{
+    /**
+     * @var string|object|null[]
+     */
+    protected $foo;
+
+    /**
+     * @return string|object|null[]
+     */
+    public function getFoo()
+    {
+        return $this->foo;
+    }
+
+    /**
+     * @param string|object|null[] $foo
+     *
+     * @return self
+     */
+    public function setFoo($foo): self
+    {
+        $this->foo = $foo;
+
+        return $this;
+    }
+}
diff --git a/Tests/fixtures/one-of/expected/Normalizer/FooNormalizer.php b/Tests/fixtures/one-of/expected/Normalizer/FooNormalizer.php
new file mode 100644
index 0000000..da27a39
--- /dev/null
+++ b/Tests/fixtures/one-of/expected/Normalizer/FooNormalizer.php
@@ -0,0 +1,100 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file has been auto generated by Jane,
+ *
+ * Do no edit it directly.
+ */
+
+namespace Jane\JsonSchema\Tests\Expected\Normalizer;
+
+use Jane\JsonSchemaRuntime\Reference;
+use Symfony\Component\Serializer\Exception\InvalidArgumentException;
+use Symfony\Component\Serializer\Normalizer\DenormalizerAwareInterface;
+use Symfony\Component\Serializer\Normalizer\DenormalizerAwareTrait;
+use Symfony\Component\Serializer\Normalizer\DenormalizerInterface;
+use Symfony\Component\Serializer\Normalizer\NormalizerAwareInterface;
+use Symfony\Component\Serializer\Normalizer\NormalizerAwareTrait;
+use Symfony\Component\Serializer\Normalizer\NormalizerInterface;
+
+class FooNormalizer implements DenormalizerInterface, NormalizerInterface, DenormalizerAwareInterface, NormalizerAwareInterface
+{
+    use DenormalizerAwareTrait;
+    use NormalizerAwareTrait;
+
+    public function supportsDenormalization($data, $type, $format = null)
+    {
+        return $type === 'Jane\\JsonSchema\\Tests\\Expected\\Model\\Foo';
+    }
+
+    public function supportsNormalization($data, $format = null)
+    {
+        return $data instanceof \Jane\JsonSchema\Tests\Expected\Model\Foo;
+    }
+
+    public function denormalize($data, $class, $format = null, array $context = [])
+    {
+        if (!is_object($data)) {
+            throw new InvalidArgumentException();
+        }
+        if (isset($data->{'$ref'})) {
+            return new Reference($data->{'$ref'}, $context['document-origin']);
+        }
+        $object = new \Jane\JsonSchema\Tests\Expected\Model\Foo();
+        if (property_exists($data, 'foo')) {
+            $value = $data->{'foo'};
+            if (is_string($data->{'foo'})) {
+                $value = $data->{'foo'};
+            } elseif (isset($data->{'foo'})) {
+                $values = new \ArrayObject([], \ArrayObject::ARRAY_AS_PROPS);
+                foreach ($data->{'foo'} as $key => $value_1) {
+                    if (preg_match('/^[a-zA-Z0-9._-]+$/', $key) && isset($value_1)) {
+                        $value_2 = $value_1;
+                        if (is_object($value_1)) {
+                            $value_2 = $value_1;
+                        } elseif (is_null($value_1)) {
+                            $value_2 = $value_1;
+                        }
+                        $values[$key] = $value_2;
+                        continue;
+                    }
+                }
+                $value = $values;
+            }
+            $object->setFoo($value);
+        }
+
+        return $object;
+    }
+
+    public function normalize($object, $format = null, array $context = [])
+    {
+        $data = new \stdClass();
+        if (null !== $object->getFoo()) {
+            $value = $object->getFoo();
+            if (is_string($object->getFoo())) {
+                $value = $object->getFoo();
+            } elseif (!is_null($object->getFoo())) {
+                $values = new \stdClass();
+                foreach ($object->getFoo() as $key => $value_1) {
+                    if (preg_match('/^[a-zA-Z0-9._-]+$/', $key) && !is_null($value_1)) {
+                        $value_2 = $value_1;
+                        if (is_object($value_1)) {
+                            $value_2 = $value_1;
+                        } elseif (is_null($value_1)) {
+                            $value_2 = $value_1;
+                        }
+                        $values->{$key} = $value_2;
+                        continue;
+                    }
+                }
+                $value = $values;
+            }
+            $data->{'foo'} = $value;
+        }
+
+        return $data;
+    }
+}
diff --git a/Tests/fixtures/one-of/expected/Normalizer/NormalizerFactory.php b/Tests/fixtures/one-of/expected/Normalizer/NormalizerFactory.php
new file mode 100644
index 0000000..76ed41c
--- /dev/null
+++ b/Tests/fixtures/one-of/expected/Normalizer/NormalizerFactory.php
@@ -0,0 +1,24 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file has been auto generated by Jane,
+ *
+ * Do no edit it directly.
+ */
+
+namespace Jane\JsonSchema\Tests\Expected\Normalizer;
+
+class NormalizerFactory
+{
+    public static function create()
+    {
+        $normalizers = [];
+        $normalizers[] = new \Symfony\Component\Serializer\Normalizer\ArrayDenormalizer();
+        $normalizers[] = new \Jane\JsonSchemaRuntime\Normalizer\ReferenceNormalizer();
+        $normalizers[] = new FooNormalizer();
+
+        return $normalizers;
+    }
+}
diff --git a/Tests/fixtures/one-of/schema.json b/Tests/fixtures/one-of/schema.json
new file mode 100644
index 0000000..32a844e
--- /dev/null
+++ b/Tests/fixtures/one-of/schema.json
@@ -0,0 +1,53 @@
+{
+    "id": "http://json-schema.org/draft-04/schema#",
+    "$schema": "http://json-schema.org/draft-04/schema#",
+    "description": "Schema with definitions",
+    "definitions": {
+        "Foo": {
+            "type": "object",
+            "properties": {
+                "foo": {
+                    "oneOf": [
+                        {
+                            "$ref":"#/definitions/list_of_strings"
+                        },
+                        {
+                            "type":"object",
+                            "patternProperties":{
+                                "^[a-zA-Z0-9._-]+$":{
+                                    "oneOf":[
+                                        {
+                                            "type":"object",
+                                            "properties":{
+                                                "aliases":{
+                                                    "$ref":"#/definitions/list_of_strings"
+                                                },
+                                                "ipv4_address":{
+                                                    "type":"string"
+                                                },
+                                                "ipv6_address":{
+                                                    "type":"string"
+                                                }
+                                            },
+                                            "additionalProperties":false
+                                        },
+                                        {
+                                            "type":"null"
+                                        }
+                                    ]
+                                }
+                            },
+                            "additionalProperties":false
+                        }
+                    ]
+                }
+            }
+        },
+        "list_of_strings": {
+            "type": "string",
+            "enum": [
+                "a", "b", "c"
+            ]
+        }
+    }
+}