diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 209a0c9802..3f547fc595 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -14,6 +14,7 @@ Changelog
  * Fix: Revised test decorator to ensure TestPageEditHandlers test cases run correctly (Alex Tomkins)
  * Fix: Wagtail bird animation in admin now ends correctly on all browsers (Deniz Dogan)
  * Fix: Explorer menu no longer shows sibling pages for which the user does not have access (Mike Hearn)
+ * Fix: Fixed occurences of invalid HTML across the CMS admin (Thibaud Colas)
 
 
 2.5.1 (07.05.2019)
diff --git a/docs/releases/2.6.rst b/docs/releases/2.6.rst
index 9d5c9fc5b4..ee257cfa4b 100644
--- a/docs/releases/2.6.rst
+++ b/docs/releases/2.6.rst
@@ -28,6 +28,7 @@ Bug fixes
  * Revised test decorator to ensure TestPageEditHandlers test cases run correctly (Alex Tomkins)
  * Wagtail bird animation in admin now ends correctly on all browsers (Deniz Dogan)
  * Explorer menu no longer shows sibling pages for which the user does not have access (Mike Hearn)
+ * Fixed occurences of invalid HTML across the CMS admin (Thibaud Colas)
 
 
 Upgrade considerations