diff --git a/config/locales/backend/backend.pt-BR.yml b/config/locales/backend/backend.br.yml
similarity index 100%
rename from config/locales/backend/backend.pt-BR.yml
rename to config/locales/backend/backend.br.yml
diff --git a/config/locales/backend/backend.zh-CN.yml b/config/locales/backend/backend.zh.yml
similarity index 100%
rename from config/locales/backend/backend.zh-CN.yml
rename to config/locales/backend/backend.zh.yml
diff --git a/config/locales/pt-BR.yml b/config/locales/br.yml
similarity index 100%
rename from config/locales/pt-BR.yml
rename to config/locales/br.yml
diff --git a/config/locales/devise/devise.pt-BR.yml b/config/locales/devise/devise.br.yml
similarity index 100%
rename from config/locales/devise/devise.pt-BR.yml
rename to config/locales/devise/devise.br.yml
diff --git a/config/locales/devise/devise.zh-CN.yml b/config/locales/devise/devise.zh.yml
similarity index 100%
rename from config/locales/devise/devise.zh-CN.yml
rename to config/locales/devise/devise.zh.yml
diff --git a/config/locales/zh-CN.yml b/config/locales/zh.yml
similarity index 100%
rename from config/locales/zh-CN.yml
rename to config/locales/zh.yml
diff --git a/crowdin.yml b/crowdin.yml
index dfe1c50f..28d35bb9 100644
--- a/crowdin.yml
+++ b/crowdin.yml
@@ -1,8 +1,8 @@
 project_id: '527056'
 files:
   - source: /config/locales/en.yml
-    translation: /config/locales/%locale%.yml
+    translation: /config/locales/%two_letters_code%.yml
   - source: /config/locales/devise/devise.en.yml
-    translation: /config/locales/devise/devise.%locale%.yml
+    translation: /config/locales/devise/devise.%two_letters_code%.yml
   - source: /config/locales/backend/backend.en.yml
-    translation: /config/locales/backend/backend.%locale%.yml
+    translation: /config/locales/backend/backend.%two_letters_code%.yml