diff --git a/doctrine.rst b/doctrine.rst
index 79efbebbd58..1cfeda2fb3d 100644
--- a/doctrine.rst
+++ b/doctrine.rst
@@ -908,5 +908,5 @@ Learn more
 .. _`FrameworkExtraBundle documentation`: https://symfony.com/doc/current/bundles/SensioFrameworkExtraBundle/annotations/converters.html
 .. _`newer utf8mb4 character set`: https://dev.mysql.com/doc/refman/5.5/en/charset-unicode-utf8mb4.html
 .. _`Transactions and Concurrency`: http://docs.doctrine-project.org/projects/doctrine-orm/en/latest/reference/transactions-and-concurrency.html
-.. _`limit of 767 bytes for the index key prefix`: https://dev.mysql.com/doc/refman/5.6/en/innodb-restrictions.html
+.. _`limit of 767 bytes for the index key prefix`: https://dev.mysql.com/doc/refman/5.6/en/innodb-limits.html
 .. _`Doctrine screencast series`: https://symfonycasts.com/screencast/symfony3-doctrine