diff --git a/source/polytechnique.dtx b/source/polytechnique.dtx
index b296066909e9a62c1216f5087281ec1390b333d2..4c4555ca6f60085e6e7ae0292e366e00c3331ba9 100644
--- a/source/polytechnique.dtx
+++ b/source/polytechnique.dtx
@@ -894,7 +894,7 @@ LaTeX version 1999/12/01 or later.
 %On redefinit la variable |\titlepagebottomline| pour l'option |titlepage|.
 %    \begin{macrocode}
     \renewcommand{\titlepagebottomline}{
-    	\begin{minipage}{5\largeurlogohori}
+    	\begin{minipage}{\linewidth}
     	    \centering
     	    \raisebox{-0.5\height}{
                 \includegraphics[width=1.5\largeurlogohori]
diff --git a/source/polytechnique.sty b/source/polytechnique.sty
index 2cfc5b8cd06ecad6cea47316f47edf2b48cc8b18..4d6977718830fcd0ddcf8c74b074a3a3f53943d9 100644
--- a/source/polytechnique.sty
+++ b/source/polytechnique.sty
@@ -358,7 +358,7 @@
         }
     }{}
     \renewcommand{\titlepagebottomline}{
-     \begin{minipage}{5\largeurlogohori}
+     \begin{minipage}{\linewidth}
          \centering
          \raisebox{-0.5\height}{
                 \includegraphics[width=1.5\largeurlogohori]