diff --git a/doc/developer/advance.tex b/doc/developer/advance.tex
index 91c8e28c36120e62de749eac8174f2c34f15399a..b72c6e159f18d91636b3c4064b7b6db58b1ea0c8 100644
--- a/doc/developer/advance.tex
+++ b/doc/developer/advance.tex
@@ -990,6 +990,10 @@ file, run it only once.
 test
 & \textit{None}
 \\
+& \texttt{TIMEOUT}\nscodeidxdef{Test!Directive}{TIMEOUT}
+& kill the test after the given duration and report a failure
+& \textit{None}
+\\
 \hline \multirow{2}{23mm}{\centering{Test suite}}
 & \texttt{DONTRUN}\nscodeidxdef{Test!Directive}{DONTRUN}
 & Do not execute this test