diff --git a/tools/_locales/en-GB/messages.json b/tools/_locales/en_GB/messages.json similarity index 100% rename from tools/_locales/en-GB/messages.json rename to tools/_locales/en_GB/messages.json diff --git a/tools/_locales/gu-IN/messages.json b/tools/_locales/gu/messages.json similarity index 100% rename from tools/_locales/gu-IN/messages.json rename to tools/_locales/gu/messages.json diff --git a/tools/_locales/ml-IN/messages.json b/tools/_locales/ml/messages.json similarity index 100% rename from tools/_locales/ml-IN/messages.json rename to tools/_locales/ml/messages.json diff --git a/tools/_locales/pt-BR/messages.json b/tools/_locales/pt_BR/messages.json similarity index 100% rename from tools/_locales/pt-BR/messages.json rename to tools/_locales/pt_BR/messages.json diff --git a/tools/_locales/pt-PT/messages.json b/tools/_locales/pt_PT/messages.json similarity index 100% rename from tools/_locales/pt-PT/messages.json rename to tools/_locales/pt_PT/messages.json diff --git a/tools/_locales/sr-CS/messages.json b/tools/_locales/sr/messages.json similarity index 100% rename from tools/_locales/sr-CS/messages.json rename to tools/_locales/sr/messages.json diff --git a/tools/_locales/zh-CN/messages.json b/tools/_locales/zh_CN/messages.json similarity index 100% rename from tools/_locales/zh-CN/messages.json rename to tools/_locales/zh_CN/messages.json