diff --git a/candidature.sty b/candidature.sty
index 83354cb..a54eae6 100644
--- a/candidature.sty
+++ b/candidature.sty
@@ -24,3 +24,10 @@
   \section*{#1}
   \addcontentsline{toc}{section}{#1}
 }
+
+% Set up an unnumbered section, with a centred title, appearing in the
+% table of contents.
+\newcommand{\xcenteredsection}[1]{
+  \section*{\centerline{#1}}
+  \addcontentsline{toc}{section}{#1}
+}
diff --git a/motivation.tex b/motivation.tex
index 74d25e2..6b1f1bb 100644
--- a/motivation.tex
+++ b/motivation.tex
@@ -1,6 +1,6 @@
 \newgeometry{text={154mm,253mm},top=25mm,centering}
 
-\xsection{\centerline{Lettre de motivation}}
+\xcenteredsection{Lettre de motivation}
 \thispagestyle{empty}
 
 \vspace{13mm}