Change a specific label in enumerate environment

Question

I'm using arabtex, and there is an error in the package.

When using \alph as a label for enumerate, it works correctly, however it is not in Arabic alphabetical order. As you would expect for the latin \alph to go a,b,c,d...etc., for Arabic it would go أ، ب، ج، د،ذ...etc. The wrong letter is the third one, it appears as something different.

I'm aware of the fact that I can change any label manually by adding the label in square brackets after \item, however, that would be tedious especially if I have more than three items. If I edit the label of the third item, the wrong label will go to the fourth one and so on.

My question is, can I change the third letter throughout the whole document either by using a command or editing the arabtex package if that's possible.

Edit: MWE:

\documentclass{article}

\usepackage{arabtex}
\usepackage{utf8}
\begin{document}

\setcode{utf8}
\begin{arabtex}
\begin{enumerate}
  \item
    \begin{enumerate}
    \item 
    \item  
    \item <Label of this item is wrong.>  
    \item  
    \item 
    \end{enumerate}
\end{enumerate}
\end{arabtex}
\end{document}