diff --git a/doc/scsh-manual/syscalls.tex b/doc/scsh-manual/syscalls.tex
index eba21a8..b45c394 100644
--- a/doc/scsh-manual/syscalls.tex
+++ b/doc/scsh-manual/syscalls.tex
@@ -1695,10 +1695,10 @@ delimiter.
 
 \section{Processes}
 
-\defun  {exec} {prog arg1 \ldots argn} \noreturn
-\defunx {exec-path} {prog arg1 \ldots argn} \noreturn
-\defunx {exec/env}  {prog env arg1 \ldots argn} \noreturn
-\defunx {exec-path/env} {prog env arg1 \ldots argn} \noreturn
+\defun  {exec} {prog \vari{arg}1 \ldots \vari{arg}n} \noreturn
+\defunx {exec-path} {prog \vari{arg}1 \ldots \vari{arg}n} \noreturn
+\defunx {exec/env}  {prog env \vari{arg}1 \ldots \vari{arg}n} \noreturn
+\defunx {exec-path/env} {prog env \vari{arg}1 \ldots \vari{arg}n} \noreturn
 \begin{desc}
 
 The \ex{\ldots/env} variants take an environment specified as a