Wrong requestCode in onActivityResult

I’m starting a new Activity from my Fragment with

startActivityForResult(intent, 1);

and want to handle the result in the Fragment’s parent Activity:

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    Log.d(TAG, "onActivityResult, requestCode: " + requestCode + ", resultCode: " + resultCode);
    if (requestCode == 1) {
        // bla bla bla
    }
}

The problem is that I never got the requestCode I’ve just posted to startActivityForResult().

I got something like 0x40001, 0x20001 etc. with a random higher bit set. The docs don’t say anything about this. Any ideas?