How can I add the Appendix to the tables of content? [duplicate]

I'm using the appendix package and the following lines in LaTeX:

\begin{appendix}
\section{Supplementary Figures and Tables}
\section{Selected Derivations and Proofs}
\end{appendix}


This yields to the following entry in the tables of content:

• Supplementary Figures and Tables XI
• Selected Derivations and Proofs XII

However, it would be nice to have something of the following form in the tables of content:

Appendix

• Supplementary Figures and Tables XI
• Selected Derivations and Proofs XII

So basically, I would like to have the title Appendix to show up in the tables of content but without a page number.

• \addappheadtotoc But of course this depends on other stuff, like the documentclass. – Johannes_B Jan 6 '16 at 11:21
• @Johannes_B: This is surely a dupe? – user31729 Jan 6 '16 at 11:22
• Look at e.g. tex.stackexchange.com/questions/172496/… – Bibi Jan 6 '16 at 11:23
• – Rico Jan 6 '16 at 11:24