diff --git a/Doc/api.tex b/Doc/api.tex
index 1a9eba4..fdc19b0 100644
--- a/Doc/api.tex
+++ b/Doc/api.tex
@@ -1,5 +1,4 @@
-\documentclass[twoside,openright]{report}
-\usepackage{myformat}
+\documentclass{manual}
 
 \title{Python/C API Reference Manual}