XDRP does not install it self to boot. (run at boot)

I installed XDRP to kali (Raspberry pi), but for some reason it did not install itself to run when booting Kali

and its annoying to every time start it manually in terminal

Code:

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service xrdp start

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Is there a way to add this to boot? and how do i do?

Fixed the problem.. This is how

Code:

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update-rc.d xdrp enable

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