diff --git a/src/plugins/serial.ts b/src/plugins/serial.ts
index af4ed0a0..e248ab99 100644
--- a/src/plugins/serial.ts
+++ b/src/plugins/serial.ts
@@ -48,7 +48,10 @@ export class Serial {
    * @param options {SerialPermissionOptions} Options used to request serial permissions for an unknown device
    * @return {Promise<any>} Returns a promise that resolves when permissions are granted
    */
-  @Cordova()
+  @Cordova({
+    successIndex: 1,
+    errorIndex: 2
+  })
   static requestPermission(options?: SerialPermissionOptions): Promise<any> { return; }
 
   /**