diff --git a/instruction_zh-Hant.tex b/instruction_zh-Hant.tex
index e7b5840..f7e4a0c 100644
--- a/instruction_zh-Hant.tex
+++ b/instruction_zh-Hant.tex
@@ -302,7 +302,7 @@
 
 
 	\begin{tcolorbox}
-	\section*{系统相互作用}
+	\section*{系統相互作用}
 	\end{tcolorbox}
 	\begin{itemize}[leftmargin=*]
 		\setlength{\parindent}{0pt}