diff --git a/user_guide_src/source/changelogs/v4.3.0.rst b/user_guide_src/source/changelogs/v4.3.0.rst
index 03d3ff8068ff..2740501b625d 100644
--- a/user_guide_src/source/changelogs/v4.3.0.rst
+++ b/user_guide_src/source/changelogs/v4.3.0.rst
@@ -57,7 +57,7 @@ Interface Changes
 Method Signature Changes
 ========================
 
-.. _v430_validation_changes:
+.. _v430-validation-changes:
 
 Validation Changes
 ------------------
diff --git a/user_guide_src/source/installation/upgrade_430.rst b/user_guide_src/source/installation/upgrade_430.rst
index 8e843272d715..5d9aac504cdb 100644
--- a/user_guide_src/source/installation/upgrade_430.rst
+++ b/user_guide_src/source/installation/upgrade_430.rst
@@ -77,7 +77,7 @@ instead of the Validation object.
 Validation Changes
 ==================
 
-- ``ValidationInterface`` has been changed. Implemented classes should likewise add the methods and the parameters so as not to break LSP. See :ref:`v430_validation_changes` for details.
+- ``ValidationInterface`` has been changed. Implemented classes should likewise add the methods and the parameters so as not to break LSP. See :ref:`v430-validation-changes` for details.
 - The return value of  ``Validation::loadRuleGroup()`` has been changed ``null`` to ``[]`` when the ``$group`` is empty. Update the code if you depend on the behavior.
 
 .. _upgrade-430-stream-filter: