diff --git a/doc/scsh-manual/syscalls.tex b/doc/scsh-manual/syscalls.tex
index 4e04951..d2ebcc7 100644
--- a/doc/scsh-manual/syscalls.tex
+++ b/doc/scsh-manual/syscalls.tex
@@ -2565,11 +2565,9 @@ or integer process ids.
 \begin{desc}
   Schedules a timer interrupt in \var{secs} seconds.
 \end{desc}
-\begin{note}
-  As the thread system needs the timer interrupt for its own purpose,
+\note{As the thread system needs the timer interrupt for its own purpose,
   \ex{itimer} works by spawning a thread which calls the interrupt
-  handler for \ex{interrupt/alrm} after the specified time.
-\end{note}
+  handler for \ex{interrupt/alrm} after the specified time.}
 
 \defun{process-sleep}{secs} \undefined
 \defunx{process-sleep-until}{time}\undefined
@@ -2682,7 +2680,7 @@ describes a better interface to signals.
 \begin{defundesc}{signal->interrupt}{\integer}{\integer}
 The programmer maps from {\Unix} signals to {\scm} interrupts with the
 \ex{signal->interrupt} procedure.
-If the signal does not have a defined {\scm} interrupt, an errror is signaled.
+If the signal does not have a defined {\scm} interrupt, an error is signaled.
 \end{defundesc}