diff --git a/Advanced/Error-Correcting Codes/parts/00 detection.tex b/Advanced/Error-Correcting Codes/parts/00 detection.tex
index 7b1d935..10b64da 100755
--- a/Advanced/Error-Correcting Codes/parts/00 detection.tex	
+++ b/Advanced/Error-Correcting Codes/parts/00 detection.tex	
@@ -19,7 +19,7 @@ Which of the following could be valid ISBNs?
 
 \begin{itemize}
 	\item \texttt{0-134-54896-2}
-	\item \texttt{0-307-29206-3}
+	\item \texttt{0-895-77258-2}
 	\item \texttt{0-316-00395-6}
 \end{itemize}