diff --git a/config.go b/config.go
index f8daef5..86c64e5 100644
--- a/config.go
+++ b/config.go
@@ -108,7 +108,7 @@ var defaultConfig = &Config{
 	AutoUpdateEnabled:    true, // Set a default value
 	ActiveExtension:      "",
 	KeyboardMacros:       []KeyboardMacro{},
-	KeyboardLayout:       "en-US",
+	KeyboardLayout:       "en_US",
 	DisplayMaxBrightness: 64,
 	DisplayDimAfterSec:   120,  // 2 minutes
 	DisplayOffAfterSec:   1800, // 30 minutes
diff --git a/ui/src/hooks/stores.ts b/ui/src/hooks/stores.ts
index dc97ccf..14b8bb1 100644
--- a/ui/src/hooks/stores.ts
+++ b/ui/src/hooks/stores.ts
@@ -400,7 +400,7 @@ export const useDeviceSettingsStore = create<DeviceSettingsState>(set => ({
     });
   },
 
-  keyboardLayout: "en-US",
+  keyboardLayout: "en_US",
   setKeyboardLayout: layout => set({ keyboardLayout: layout }),
 }));