diff --git a/book/cover/cover.tex b/book/cover/cover.tex
index db0ad81..67ea788 100644
--- a/book/cover/cover.tex
+++ b/book/cover/cover.tex
@@ -1,8 +1,16 @@
 \thispagestyle{empty}
 \setlength{\unitlength}{1mm}
-\noindent\begin{picture}(0,0)(1,-1)
-\put(-16.3,-265){\includegraphics[width=1.33\linewidth]{cover/cover-page.jpg}}
-\end{picture}
+\makeatletter
+\if@twoside%
+    \noindent\begin{picture}(0,0)(1,-1)
+    \put(-16.3,-265){\includegraphics[width=1.33\linewidth]{cover/cover-page.jpg}}
+    \end{picture}
+\else%
+    \noindent\begin{picture}(0,0)(1,-1)
+    \put(-23.3,-265){\includegraphics[width=1.33\linewidth]{cover/cover-page.jpg}}
+    \end{picture}
+\fi%
+\makeatother
 
 \newpage
 \thispagestyle{empty}