diff --git a/src/index.ts b/src/index.ts
index c4292ea..fbbb22c 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -3,4 +3,4 @@
  * index.ts: Switchbot BLE API registration.
  */
 export * from './switchbot.js';
-export { SwitchBotBLEDevice, SwitchBotModel, SwitchBotBLEModel, SwitchBotBLEModelName, SwitchBotBLEModelFriendlyName } from './types.js';
\ No newline at end of file
+export * from './types.js';
\ No newline at end of file
diff --git a/src/types.ts b/src/types.ts
index afc4956..9948e08 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -2,7 +2,7 @@
  *
  * util.ts: @switchbot/homebridge-switchbot platform class.
  */
-export type SwitchBotBLEDevice = {
+export declare type SwitchBotBLEDevice = {
   Bot: {
     Model: SwitchBotModel.Bot,
     BLEModel: SwitchBotBLEModel.Bot,