diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 8cacea244c..1cc79bacd0 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -6,6 +6,7 @@ Changelog
 
 * Fix: Correctly place comment buttons next to date / datetime / time fields. (Srishti Jaiswal)
 * Fix: Reduce confusing spacing below StreamField blocks help text (Rishabh Sharma)
+* Fix: Make sure alt text quality check is on by default as documented (Thibaud Colas)
 * Docs: Update example for customizing "p-as-heading" accessibility check without overriding built-in checks (Cynthia Kiser)
 * Docs: Update accessibility considerations on alt text in light of contextual alt text improvements (Cynthia Kiser)
 
diff --git a/docs/releases/6.3.3.md b/docs/releases/6.3.3.md
index 6b42ed9bdf..790c66268d 100644
--- a/docs/releases/6.3.3.md
+++ b/docs/releases/6.3.3.md
@@ -16,6 +16,7 @@ depth: 1
 
  * Correctly place comment buttons next to date / datetime / time fields. (Srishti Jaiswal)
  * Reduce confusing spacing below StreamField blocks help text (Rishabh Sharma)
+ * Make sure alt text quality check is on by default as documented (Thibaud Colas)
 
 ### Documentation
 
diff --git a/wagtail/admin/userbar.py b/wagtail/admin/userbar.py
index 889234b3cd..c98e253eaa 100644
--- a/wagtail/admin/userbar.py
+++ b/wagtail/admin/userbar.py
@@ -55,6 +55,7 @@ class AccessibilityItem(BaseItem):
         "input-button-name",
         "link-name",
         "p-as-heading",
+        "alt-text-quality",
     ]
 
     #: A dictionary that maps axe-core rule IDs to a dictionary of rule options,