diff --git a/flextype/config/settings.yaml b/flextype/config/settings.yaml
index 17302830..927292f6 100644
--- a/flextype/config/settings.yaml
+++ b/flextype/config/settings.yaml
@@ -40,7 +40,7 @@ date_format: "F d Y H:i:s"
 theme: default
 
 # The locale that'll be used by the Flextype.
-locale: "en"
+locale: "en_US"
 
 # The entries settings
 # Define the file types (extensions to be exact) that are acceptable for upload.