diff --git a/src/Symfony/Bundle/FrameworkBundle/Resources/config/serializer.xml b/src/Symfony/Bundle/FrameworkBundle/Resources/config/serializer.xml
index 23da8b07bc..14a6ba9711 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Resources/config/serializer.xml
+++ b/src/Symfony/Bundle/FrameworkBundle/Resources/config/serializer.xml
@@ -38,6 +38,11 @@
             <tag name="serializer.normalizer" priority="-915" />
         </service>
 
+        <service id="serializer.normalizer.datetimezone" class="Symfony\Component\Serializer\Normalizer\DateTimeZoneNormalizer">
+            <!-- Run before serializer.normalizer.object -->
+            <tag name="serializer.normalizer" priority="-915" />
+        </service>
+
         <service id="serializer.normalizer.dateinterval" class="Symfony\Component\Serializer\Normalizer\DateIntervalNormalizer">
             <!-- Run before serializer.normalizer.object -->
             <tag name="serializer.normalizer" priority="-915" />