diff --git a/CHANGELOG.md b/CHANGELOG.md
index db162b92527ce937fca6e6eecc0f1f66c22dc2e7..a3d49772211912c16cf4434cb3ba1e6a57ac07b4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 * A `#version_history` URI fragment which can be used to directly open the modal
   with the full version history of the first entity on the page.
+* `BUILD_MODULE_SHOW_ID_IN_LABEL` build variable with which the showing of
+  entity ids together with their names is enabled (disabled by default).
 
 ### Changed (for changes in existing functionality)