diff --git a/高等微积分.tex b/高等微积分.tex
index 95e16b4..f31005b 100644
--- a/高等微积分.tex
+++ b/高等微积分.tex
@@ -1,4 +1,4 @@
-\documentclass[12pt, UTF8, a4paper, fontset=none]{ctexbook}
+\documentclass[12pt, UTF8, a4paper, fontset=none, oneside]{ctexbook}
 \usepackage{geometry}
 \usepackage{amsmath}
 \usepackage{amsthm}