diff --git a/i18n/optiongroups.yaml b/i18n/optiongroups.yaml
index c3c4653ea3d..86dcebe3428 100644
--- a/i18n/optiongroups.yaml
+++ b/i18n/optiongroups.yaml
@@ -1,4 +1,5 @@
 advanced: Advanced
+armhole: Armhole
 backPockets: Back pockets
 closure: Closure
 collar: Collar