diff --git a/config/initializers/feature_decisions.rb b/config/initializers/feature_decisions.rb
index c8f45795fe6b..4414b6e98f2a 100644
--- a/config/initializers/feature_decisions.rb
+++ b/config/initializers/feature_decisions.rb
@@ -59,3 +59,7 @@
 
 OpenProject::FeatureDecisions.add :ai_text_transform_actions,
                                   description: "Enables the admin UI to manage AI text transform actions."
+
+OpenProject::FeatureDecisions.add :work_package_labels,
+                                  description: "Enables labels on work packages, the labels API and the labels administration. " \
+                                               "See FND-5 for details."
diff --git a/docs/installation-and-operations/configuration/environment/README.md b/docs/installation-and-operations/configuration/environment/README.md
index cac30e810eb5..c1dbf1ce2c95 100644
--- a/docs/installation-and-operations/configuration/environment/README.md
+++ b/docs/installation-and-operations/configuration/environment/README.md
@@ -242,6 +242,7 @@ OPENPROJECT_FEATURE__MINUTES__STYLING__MEETING__PDF__ACTIVE (default=false) Allo
 OPENPROJECT_FEATURE__SPRINT__REPORTS__ACTIVE (default=false) Enables sprint reporting within the backlogs module. It shows a dashboard with various widgets regarding the sprint progress.
 OPENPROJECT_FEATURE__STORAGE__FILE__PICKING__SELECT__ALL__ACTIVE (default=false)
 OPENPROJECT_FEATURE__WIKI__ENHANCEMENTS__ACTIVE (default=true) Enables Wiki enhancements, such as the Wikis tab and XWiki integration.
+OPENPROJECT_FEATURE__WORK__PACKAGE__LABELS__ACTIVE (default=false) Enables labels on work packages, the labels API and the labels administration. See FND-5 for details.
 OPENPROJECT_FEEDS__ENABLED (default=true) Enable Feeds
 OPENPROJECT_FEEDS__LIMIT (default=15) Feed content limit
 OPENPROJECT_FILE__MAX__SIZE__DISPLAYED (default=512) Max size of text files displayed inline