References not working in pandoc latex to rtf

So I'm following the example here pandoc latex to rtf - No link colors

pandoc main.tex -f latex -s -o test.rtf --bibliography main.bib

main.tex

\documentclass{article} \usepackage{graphicx} % Required for inserting images \begin{document} \section{Introduction} Consider the \cite{berger2000}. \bibliographystyle{plain} \bibliography{main} \end{document} 

main.bib

@article{berger2000, title={Hoard: A scalable memory allocator for multithreaded applications}, author={Berger, Emery D and McKinley, Kathryn S and Blumofe, Robert D and Wilson, Paul R}, journal={ACM Sigplan Notices}, volume={35}, number={11}, pages={117--128}, year={2000}, publisher={ACM New York, NY, USA} } 

pdflatex works fine. Actually just getting [?] where a reference should be would be okay for my purposes as I only need rtf to grammar check.