Added documentation for PyOS_AfterFork().
diff --git a/Doc/api/api.tex b/Doc/api/api.tex
index faadd2a..c7b2d45 100644
--- a/Doc/api/api.tex
+++ b/Doc/api/api.tex
@@ -1033,6 +1033,13 @@
the standard C library function \cfunction{time()}.
\end{cfuncdesc}
+\begin{cfuncdesc}{void}{PyOS_AfterFork}{}
+Function to update some internal state after a process fork; this
+should be called in the new process if the Python interpreter will
+continue to be used. If a new executable is loaded into the new
+process, this function does not need to be called.
+\end{cfuncdesc}
+
\section{Process Control \label{processControl}}