diff --git a/src/langs/es.txt b/src/langs/es.txt
index ada4a6b..b740e32 100644
--- a/src/langs/es.txt
+++ b/src/langs/es.txt
@@ -340,6 +340,7 @@ rpc.request.parse.failed=No se pudo analizar la solicitud JSON-RPC.
 checksum.failed=La validación de la suma de comprobación falló.
 
 [languages]
+Czech=Checo
 English=Inglés
 Spanish=Español
 French=Francés
diff --git a/src/langs/fr_FR.txt b/src/langs/fr_FR.txt
index 2f70eaf..48d53e9 100644
--- a/src/langs/fr_FR.txt
+++ b/src/langs/fr_FR.txt
@@ -340,6 +340,7 @@ rpc.request.parse.failed=Echec dans l'analyse de la requête JSON-RPC.
 checksum.failed=La vérification du checksum a échoué.
 
 [languages]
+Czech=Tchèque
 English=Anglais
 Spanish=Espagnol
 French=Français
diff --git a/src/langs/it_IT.txt b/src/langs/it_IT.txt
index 2cb4642..9c805d4 100644
--- a/src/langs/it_IT.txt
+++ b/src/langs/it_IT.txt
@@ -340,6 +340,7 @@ rpc.request.parse.failed=Errore durante l'analisi della richiesta RPC.
 checksum.failed=Errore di verifica del checksum del file.
 
 [languages]
+Czech=Ceco
 English=Inglese
 Spanish=Spagnolo
 French=Francese
diff --git a/src/langs/ru_RU.txt b/src/langs/ru_RU.txt
index b9d0781..1e8748c 100644
--- a/src/langs/ru_RU.txt
+++ b/src/langs/ru_RU.txt
@@ -340,6 +340,7 @@ rpc.request.parse.failed=Ошибка при разборе RPC-запроса.
 checksum.failed=Ошибка проверки контрольной суммы файла.
 
 [languages]
+Czech=Че́шский
 English=Английский
 Spanish=испанский
 French=Французский
diff --git a/src/langs/zh_Hans.txt b/src/langs/zh_Hans.txt
index f78b3ea..f42fc9f 100644
--- a/src/langs/zh_Hans.txt
+++ b/src/langs/zh_Hans.txt
@@ -340,6 +340,7 @@ rpc.request.parse.failed=处理 RPC 请求失败.
 checksum.failed=文件校验失败.
 
 [languages]
+Czech=捷克语
 English=英语
 Spanish=西班牙语
 French=法语
diff --git a/src/langs/zh_Hant.txt b/src/langs/zh_Hant.txt
index 330da49..ef8e7f0 100644
--- a/src/langs/zh_Hant.txt
+++ b/src/langs/zh_Hant.txt
@@ -340,6 +340,7 @@ rpc.request.parse.failed=處理 RPC 要求失敗.
 checksum.failed=檔案校驗失敗.
 
 [languages]
+Czech=捷克語
 English=英語
 Spanish=西班牙語
 French=法語
diff --git a/src/scripts/config/defaultLanguage.js b/src/scripts/config/defaultLanguage.js
index f705a2f..90cfebb 100644
--- a/src/scripts/config/defaultLanguage.js
+++ b/src/scripts/config/defaultLanguage.js
@@ -343,6 +343,7 @@
                 'checksum.failed': 'Checksum validation failed.'
             },
             'languages': {
+                'Czech': 'Czech',
                 'English': 'English',
                 'Spanish': 'Spanish',
                 'French': 'French',