# How can I add dot after the subsection number?

I use \usepackage{secdot} so I achieved dot after section numbering. But I can't for subsection

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The package documentation is your friend.

\documentclass{article}
\usepackage{secdot}
\sectiondot{subsection}
\begin{document}
\section{A section}
\subsection{A subsection}
\end{document}


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