I have the following Matlab code in my Latex file:
\documentclass[a4paper,12pt]{article}
\begin{document}
\begin{lstlisting}[frame=single,escapeinside={@}{@}]
gamma=[1/4,3/4];
alpha=[1/4,3/4];
\end{lstlisting}
\end{document}
But in my Latex file the variable name gamma is in bold and alpha isn't. How can I get rid of the bold for one specific variablename?

\documentclass{...}and ending with\end{document}. That may seem tedious to you, but think of the extra work it represents for TeX.SX users willing to help you. Help them help you: remove that one hurdle between you and a solution to your problem. – jub0bs Oct 19 '13 at 09:18\usepackage{listings}, but with that neither word is bold, so there is more your set-up you need to tell us about. – Andrew Swann Oct 19 '13 at 09:45matlab-prettifierpackage; see this answer. – jub0bs Apr 28 '14 at 15:55