diff --git a/data/magic.mse-game/language b/data/magic.mse-game/language
index f6887c60..03f6b558 100644
--- a/data/magic.mse-game/language
+++ b/data/magic.mse-game/language
@@ -1,10 +1,10 @@
-
+
 
 # Language specific strings
 languages := [
 	English: [
 		code              : "en",
-		spellcheck_code   : "en_US",
+		spellcheck_code   : "en_us",
 		pt_separator      : "/",
 		type_separator    : " — ",
 		subtype_separator : " ",
diff --git a/data/magic.mse-game/magic-words.en_US.dic b/data/magic.mse-game/magic-words.en_us.dic
similarity index 100%
rename from data/magic.mse-game/magic-words.en_US.dic
rename to data/magic.mse-game/magic-words.en_us.dic