diff --git a/readme.md b/readme.md
index 894fac2..d85f82c 100644
--- a/readme.md
+++ b/readme.md
@@ -39,7 +39,7 @@ var app = {
             replaceLineBreaks: false, // true to replace \n by a new line, false by default
             android: {
                 intent: 'INTENT'  // send SMS with the native android SMS messaging
-                //intent: '' // send SMS without opening any other app
+                //intent: '' // send SMS without opening any other app, require : android.permission.SEND_SMS and android.permission.READ_PHONE_STATE
             }
         };