diff --git a/tools/style/myXsim.sty b/tools/style/myXsim.sty
index 6df9087..ffa22b6 100644
--- a/tools/style/myXsim.sty
+++ b/tools/style/myXsim.sty
@@ -37,6 +37,22 @@
 }{}
 \xsimsetup{exercise/template=exo}
 
+\DeclareExerciseEnvironmentTemplate{sol}{%
+    \subsection*
+    {%
+        \color{exercise}{\XSIMmixedcase{\GetExerciseName}}\nobreakspace
+        : Exercice \GetExerciseProperty{counter}%
+        \hspace{0.5cm} \color{line}\hrulefill \hspace{0.5cm}
+        \color{exercise}
+        \IfInsideSolutionF
+        {%
+        }%
+        \noindent
+    }
+}{}
+\xsimsetup{solution/template=sol}
+
+
 \DeclareExerciseTableTemplate{DNB}{%
     \XSIMputright\ExerciseTableCode{%
         \hline