diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 24868cec88..2702d6c79c 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -7,6 +7,7 @@ Changelog
  * Add `before_edit_snippet`, `before_create_snippet` and `before_delete_snippet` hooks and documentation (Karl Hobley. Sponsored by the Mozilla Foundation)
  * Add `wagtail --version` to available Wagtail CLI commands (Kalob Taulien)
  * Fix: Make page-level actions accessible to keyboard users in page listing tables (Jesse Menn)
+ * Fix: `WAGTAILFRONTENDCACHE_LANGUAGES` was being interpreted incorrectly. It now accepts a list of strings, as documented (Karl Hobley)
 
 2.10 (xx.xx.xxxx) - IN DEVELOPMENT
 ~~~~~~~~~~~~~~~~~
diff --git a/docs/releases/2.11.rst b/docs/releases/2.11.rst
index 38743c2570..a582d4225a 100644
--- a/docs/releases/2.11.rst
+++ b/docs/releases/2.11.rst
@@ -20,7 +20,8 @@ Other features
 Bug fixes
 ~~~~~~~~~
 
- * Fix: Make page-level actions accessible to keyboard users in page listing tables (Jesse Menn)
+ * Make page-level actions accessible to keyboard users in page listing tables (Jesse Menn)
+ * ``WAGTAILFRONTENDCACHE_LANGUAGES`` was being interpreted incorrectly. It now accepts a list of strings, as documented (Karl Hobley)
 
 
 Upgrade considerations