diff --git a/src/Symfony/Component/Form/Resources/translations/validators.vi.xlf b/src/Symfony/Component/Form/Resources/translations/validators.vi.xlf
index b5b2f83a9a..1b689fa3ee 100644
--- a/src/Symfony/Component/Form/Resources/translations/validators.vi.xlf
+++ b/src/Symfony/Component/Form/Resources/translations/validators.vi.xlf
@@ -14,6 +14,10 @@
                 <source>The CSRF token is invalid. Please try to resubmit the form.</source>
                 <target>CSRF token không hợp lệ. Vui lòng thử lại.</target>
             </trans-unit>
+            <trans-unit id="99">
+                <source>This value is not a valid HTML5 color.</source>
+                <target>Giá trị này không phải là màu HTML5 hợp lệ.</target>
+            </trans-unit>
         </body>
     </file>
 </xliff>