diff --git a/pickerlibrary/src/main/ets/component/PickerComponent.ets b/pickerlibrary/src/main/ets/component/PickerComponent.ets
index 5b2efcb930e0d4453635e267824ebec6ae9bf881..9180e8d8e4a7f9eccd5d2d31b265bc56274ebad4 100644
--- a/pickerlibrary/src/main/ets/component/PickerComponent.ets
+++ b/pickerlibrary/src/main/ets/component/PickerComponent.ets
@@ -231,9 +231,9 @@ export struct PickerComponent {
     }
   }
 
-  getTitle(): string {
+  getTitle(): string | undefined {
     try {
-      this.getUIContext().getHostContext()?.resourceManager.getStringSync($r('app.string.last_open').id);
+      return this.getUIContext().getHostContext()?.resourceManager.getStringSync($r('app.string.last_open').id);
     } catch (err) {
       Logger.error(TAG, `getStringSync failed, ErrorCode: ${err.code},  Message: ${err.message}`);
     }