diff --git a/lang/en-ES.yml b/lang/en_ES.yml
similarity index 95%
rename from lang/en-ES.yml
rename to lang/en_ES.yml
index b97f748a3..f96e0339b 100644
--- a/lang/en-ES.yml
+++ b/lang/en_ES.yml
@@ -1,4 +1,4 @@
-en-ES:
+en_ES:
   AssetAdmin:
     MENUTITLE: "Files & Images"
   CMSMain:
diff --git a/lang/en-GB.yml b/lang/en_GB.yml
similarity index 99%
rename from lang/en-GB.yml
rename to lang/en_GB.yml
index 6cd55eac6..290b59c84 100644
--- a/lang/en-GB.yml
+++ b/lang/en_GB.yml
@@ -1,4 +1,4 @@
-en-GB:
+en_GB:
   AssetAdmin:
     CHOOSEFILE: "Choose file:"
     MENUTITLE: "Files & Images"
diff --git a/lang/es-419.yml b/lang/es_419.yml
similarity index 100%
rename from lang/es-419.yml
rename to lang/es_419.yml
diff --git a/lang/es-AR.yml b/lang/es_AR.yml
similarity index 99%
rename from lang/es-AR.yml
rename to lang/es_AR.yml
index ed5fbe380..523c335d0 100644
--- a/lang/es-AR.yml
+++ b/lang/es_AR.yml
@@ -1,4 +1,4 @@
-es-AR:
+es_AR:
   AssetAdmin:
     CHOOSEFILE: "Elegir un archivo:"
     MENUTITLE: "Archivos & Imágenes"
diff --git a/lang/es-MX.yml b/lang/es_MX.yml
similarity index 99%
rename from lang/es-MX.yml
rename to lang/es_MX.yml
index cec7704f8..db59c7371 100644
--- a/lang/es-MX.yml
+++ b/lang/es_MX.yml
@@ -1,4 +1,4 @@
-es-MX:
+es_MX:
   AssetAdmin:
     CHOOSEFILE: "Seleccione un archivo"
     MENUTITLE: "Archivos e imágenes"
diff --git a/lang/et-EE.yml b/lang/et_EE.yml
similarity index 99%
rename from lang/et-EE.yml
rename to lang/et_EE.yml
index b903b6d7b..bd2c015ec 100644
--- a/lang/et-EE.yml
+++ b/lang/et_EE.yml
@@ -1,4 +1,4 @@
-et-EE:
+et_EE:
   AssetAdmin:
     CHOOSEFILE: "Vali fail:"
     MENUTITLE: "Failid ja pildid"
diff --git a/lang/eu-ES.yml b/lang/eu_ES.yml
similarity index 95%
rename from lang/eu-ES.yml
rename to lang/eu_ES.yml
index 0a98ef4f6..ccca9236a 100644
--- a/lang/eu-ES.yml
+++ b/lang/eu_ES.yml
@@ -1,4 +1,4 @@
-eu-ES:
+eu_ES:
   AssetAdmin:
     MENUTITLE: "Fitxategiak eta irudiak"
   LeftAndMain:
diff --git a/lang/fa-IR.yml b/lang/fa_IR.yml
similarity index 99%
rename from lang/fa-IR.yml
rename to lang/fa_IR.yml
index ddf7b9692..6663e1814 100644
--- a/lang/fa-IR.yml
+++ b/lang/fa_IR.yml
@@ -1,4 +1,4 @@
-fa-IR:
+fa_IR:
   AssetAdmin:
     CHOOSEFILE: "انتخاب فايل"
     MENUTITLE: "فايل ها و عكس ها"
diff --git a/lang/he-IL.yml b/lang/he_IL.yml
similarity index 99%
rename from lang/he-IL.yml
rename to lang/he_IL.yml
index 19aeb04d2..012dec655 100644
--- a/lang/he-IL.yml
+++ b/lang/he_IL.yml
@@ -1,4 +1,4 @@
-he-IL:
+he_IL:
   AssetAdmin:
     CHOOSEFILE: "בחר קובץ"
     MENUTITLE: "קבצים ותמונות"
diff --git a/lang/hi-IN.yml b/lang/hi_IN.yml
similarity index 83%
rename from lang/hi-IN.yml
rename to lang/hi_IN.yml
index 41488443a..49ed61853 100644
--- a/lang/hi-IN.yml
+++ b/lang/hi_IN.yml
@@ -1,3 +1,3 @@
-hi-IN:
+hi_IN:
   CMSMain:
     SAVE: "बचाओ"
diff --git a/lang/hy-AM.yml b/lang/hy_AM.yml
similarity index 98%
rename from lang/hy-AM.yml
rename to lang/hy_AM.yml
index 6475a9005..053d4b1b1 100644
--- a/lang/hy-AM.yml
+++ b/lang/hy_AM.yml
@@ -1,4 +1,4 @@
-hy-AM:
+hy_AM:
   AssetAdmin:
     MENUTITLE: "Նշոցներ և Պատկերներ"
   CMSMain:
diff --git a/lang/ja-JP.yml b/lang/ja_JP.yml
similarity index 99%
rename from lang/ja-JP.yml
rename to lang/ja_JP.yml
index 19bcc732c..004eddc1b 100644
--- a/lang/ja-JP.yml
+++ b/lang/ja_JP.yml
@@ -1,4 +1,4 @@
-ja-JP:
+ja_JP:
   AssetAdmin:
     CHOOSEFILE: "ファイルを選択"
     MENUTITLE: "ファイルと画像"
diff --git a/lang/kn-IN.yml b/lang/kn_IN.yml
similarity index 97%
rename from lang/kn-IN.yml
rename to lang/kn_IN.yml
index 83764e2a2..a8ef20a84 100644
--- a/lang/kn-IN.yml
+++ b/lang/kn_IN.yml
@@ -1,4 +1,4 @@
-kn-IN:
+kn_IN:
   AssetAdmin:
     MENUTITLE: "ಫೈಲ್ಗಳು ಮತ್ತು ಚಿತ್ರಗಳು"
   CMSMain:
diff --git a/lang/lc-XX.yml b/lang/lc_XX.yml
similarity index 99%
rename from lang/lc-XX.yml
rename to lang/lc_XX.yml
index f3e118e8f..edc81b421 100644
--- a/lang/lc-XX.yml
+++ b/lang/lc_XX.yml
@@ -1,4 +1,4 @@
-lc-XX:
+lc_XX:
   AssetAdmin:
     CHOOSEFILE: "CHOOSE FIEL"
     MENUTITLE: "FILEZ N IMAGEZ"
diff --git a/lang/mi-NZ.yml b/lang/mi_NZ.yml
similarity index 99%
rename from lang/mi-NZ.yml
rename to lang/mi_NZ.yml
index f8efd08dd..998aefbb0 100644
--- a/lang/mi-NZ.yml
+++ b/lang/mi_NZ.yml
@@ -1,4 +1,4 @@
-mi-NZ:
+mi_NZ:
   AssetAdmin:
     MENUTITLE: "Ngā kōnae me ngā atahanga. "
   AssetAdmin_left.ss:
diff --git a/lang/pt-BR.yml b/lang/pt_BR.yml
similarity index 99%
rename from lang/pt-BR.yml
rename to lang/pt_BR.yml
index 7ccaf1429..9c4c5fd2d 100644
--- a/lang/pt-BR.yml
+++ b/lang/pt_BR.yml
@@ -1,4 +1,4 @@
-pt-BR:
+pt_BR:
   AssetAdmin:
     CHOOSEFILE: "Selecione Arquivo"
     MENUTITLE: "Arquivos & Imagens"
diff --git a/lang/vi-US.yml b/lang/vi_US.yml
similarity index 99%
rename from lang/vi-US.yml
rename to lang/vi_US.yml
index 85a35e9ca..7cba10d3a 100644
--- a/lang/vi-US.yml
+++ b/lang/vi_US.yml
@@ -1,4 +1,4 @@
-vi-US:
+vi_US:
   AssetAdmin:
     MENUTITLE: "Tài liệu và hình ảnh"
   CMSMain:
diff --git a/lang/vi-VN.yml b/lang/vi_VN.yml
similarity index 99%
rename from lang/vi-VN.yml
rename to lang/vi_VN.yml
index 39520161f..55ac35b77 100644
--- a/lang/vi-VN.yml
+++ b/lang/vi_VN.yml
@@ -1,4 +1,4 @@
-vi-VN:
+vi_VN:
   AssetAdmin:
     MENUTITLE: "Tập tin & Hình ảnh"
   CMSMain:
diff --git a/lang/zh-CN.yml b/lang/zh_CN.yml
similarity index 99%
rename from lang/zh-CN.yml
rename to lang/zh_CN.yml
index be8b30331..9ed9e41c0 100644
--- a/lang/zh-CN.yml
+++ b/lang/zh_CN.yml
@@ -1,4 +1,4 @@
-zh-CN:
+zh_CN:
   AssetAdmin:
     CHOOSEFILE: "选择文件"
     MENUTITLE: "文件和图片"
diff --git a/lang/zh-TW.yml b/lang/zh_TW.yml
similarity index 99%
rename from lang/zh-TW.yml
rename to lang/zh_TW.yml
index d3182511d..83909ecf4 100644
--- a/lang/zh-TW.yml
+++ b/lang/zh_TW.yml
@@ -1,4 +1,4 @@
-zh-TW:
+zh_TW:
   AssetAdmin:
     CHOOSEFILE: "選擇檔案"
     MENUTITLE: "檔案和圖片"