diff --git a/paper/c122253-thesis.tex b/paper/c122253-thesis.tex
index 119fff9..ac74f9f 100644
--- a/paper/c122253-thesis.tex
+++ b/paper/c122253-thesis.tex
@@ -7,6 +7,7 @@
 %\usepackage[sectionbib]{chapterbib}
 \usepackage{ascmac}
 \usepackage{geometry}
+\usepackage[margin=0.8cm]{geometry}
 \usepackage[utf8]{inputenc}
 \usepackage{longtable}
 \usepackage{url}		% 文中にURLを書くときは \url{} で括る