diff --git a/Casks/hearthstone-eu.rb b/Casks/hearthstone-en-gb.rb
similarity index 90%
rename from Casks/hearthstone-eu.rb
rename to Casks/hearthstone-en-gb.rb
index 5c65cbcca..1aee82d76 100644
--- a/Casks/hearthstone-eu.rb
+++ b/Casks/hearthstone-en-gb.rb
@@ -1,4 +1,4 @@
-cask 'hearthstone-eu' do
+cask 'hearthstone-en-gb' do
   version :latest
   sha256 :no_check