diff --git a/pyAmakIHM/classes/fenetre.py b/pyAmakIHM/classes/fenetre.py
index 91662baa72023298d5931af5b2662fa8bb3d08d6..e0b66f565725e9e0667f7f5b514d6ab1299c6d8e 100644
--- a/pyAmakIHM/classes/fenetre.py
+++ b/pyAmakIHM/classes/fenetre.py
@@ -299,6 +299,7 @@ class Fenetre :
     """
     Notify the controleur to stop the app and close the window
     """
+
     def on_closing(self) -> None:
         self.__observer.updateClosing()
         for pan in self.__panelGraphiques: