diff --git a/manual/tracy.tex b/manual/tracy.tex
index 8b928108..436ab24e 100644
--- a/manual/tracy.tex
+++ b/manual/tracy.tex
@@ -863,7 +863,7 @@ On this combined view you will find the zones with locks and their associated th
 \label{zoneslocks}
 \end{figure}
 
-The left hand side index area of the timeline view displays various labels (threads, locks), which can be categorized in the following way:
+The left hand side \emph{index area} of the timeline view displays various labels (threads, locks), which can be categorized in the following way:
 
 \begin{itemize}
 \item \emph{Light blue label} -- OpenGL/Vulkan context.