diff --git a/sustechthesis.dtx b/sustechthesis.dtx
index 43cce9c..e2cfc8a 100644
--- a/sustechthesis.dtx
+++ b/sustechthesis.dtx
@@ -3921,7 +3921,7 @@ Thesis for the degree of \degree@level@en@noun \ of \thu@degree@domain@en%
       \centering
       \vspace*{10mm}
       {
-        \zihao{-2} \kaishu \bfseries %
+        \zihao{-1} \kaishu \bfseries %
         \renewcommand{\CJKglue}{\hskip 6pt plus 0.08\baselineskip}%
         南方科技大学 \par
       }