[Tex/LaTex] Overfull warning when using longtable

longtablespacingwarnings

I am getting overfull warning (Overfull \hbox (17.10379pt too wide) in alignment) when using longtable enviroment (See MWE below) The warnings are on \begin{longtable} and \end* lines. The pdf filellooks fine, but I would like to get rid of the warning message. Any suggestions on how to get rid of those warning by formatting the table?

\documentclass{article}

\usepackage{longtable}
\usepackage{lipsum}

\begin{document}
\begin{longtable}{*2{p{0.49\textwidth}}}
        Title & Column 2 \\
        \hline
    \endfirsthead
        Title & Column 2 \\
        \hline
    \endhead
        \multicolumn{2}{r}{Continued}\\
    \endfoot
        \hline
    \endlastfoot

    \lipsum[1] & \lipsum[2]\\
\end{longtable}
\end{document}

Best Answer

You're not taking correctly into account the \tabcolsep, a space that is added in front and after all columns:

\begin{longtable}{*2{p{\dimexpr0.5\textwidth-2\tabcolsep\relax}}}

Or, with the calc package,

\begin{longtable}{*2{p{0.5\textwidth-2\tabcolsep}}}