diff --git a/manual/tracy.tex b/manual/tracy.tex
index 6d65df6c..c395f23e 100644
--- a/manual/tracy.tex
+++ b/manual/tracy.tex
@@ -2512,6 +2512,8 @@ The frame time graph (section~\ref{frametimegraph}) behavior is altered when a z
 
 Each bar is drawn in gray color, with the white part accounting for the zone time. If the execution time is greater than the frame time (this is possible if more than one thread was executing the same zone), the overflow will be displayed using red color.
 
+Enabling \emph{Self time} option has an effect on the displayed values.
+
 \begin{bclogo}[
 noborder=true,
 couleur=black!5,