diff --git a/meshtastic/device_ui.proto b/meshtastic/device_ui.proto
index eb1e949e..b9a72cea 100644
--- a/meshtastic/device_ui.proto
+++ b/meshtastic/device_ui.proto
@@ -314,6 +314,11 @@ enum Language {
    */
   BULGARIAN = 17;
 
+  /*
+   * Czech
+   */
+  CZECH = 18;
+
   /*
    * Simplified Chinese (experimental)
    */