diff --git a/src/Symfony/Component/Serializer/Normalizer/AbstractNormalizer.php b/src/Symfony/Component/Serializer/Normalizer/AbstractNormalizer.php
index 660ef8ba52aa4..00bd8a2a52faf 100644
--- a/src/Symfony/Component/Serializer/Normalizer/AbstractNormalizer.php
+++ b/src/Symfony/Component/Serializer/Normalizer/AbstractNormalizer.php
@@ -354,12 +354,10 @@ protected function instantiateObject(array &$data, $class, array &$context, \Ref
                             throw new RuntimeException(sprintf('Cannot create an instance of %s from serialized data because the variadic parameter %s can only accept an array.', $class, $constructorParameter->name));
                         }
 
-                        $variadicParameters = array_map(
-                            function ($parameterData) use ($reflectionClass, $constructorParameter, $paramName, $context, $format) {
-                                return $this->denormalizeParameter($reflectionClass, $constructorParameter, $paramName, $parameterData, $context, $format);
-                            },
-                            $data[$paramName]
-                        );
+                        $variadicParameters = [];
+                        foreach ($data[$paramName] as $parameterData) {
+                            $variadicParameters[] = $this->denormalizeParameter($reflectionClass, $constructorParameter, $paramName, $parameterData, $context, $format);
+                        }
 
                         $params = array_merge($params, $variadicParameters);
                         unset($data[$key]);