diff --git a/create/skeletons/theme/hugo.toml b/create/skeletons/theme/hugo.toml
index 890e58deb3a..6c35bc476f0 100644
--- a/create/skeletons/theme/hugo.toml
+++ b/create/skeletons/theme/hugo.toml
@@ -1,5 +1,5 @@
 baseURL = 'https://example.org/'
-languageCode = 'en-us'
+languageCode = 'en-US'
 title = 'My New Hugo Site'
 
 [[menus.main]]