diff --git a/birdie.py b/birdie.py
index e95fcfe..e82cbab 100644
--- a/birdie.py
+++ b/birdie.py
@@ -13,13 +13,10 @@ def draw():
     screen.blit('background', (0, 0))
     titi.draw()
 
-def on_mouse_up():
-    print('Clic souris !')
-    titi.speed = 0
-
-
 def update():
     titi.x += titi.speed
+    if titi.left > WIDTH :
+        titi.right = 0
 
 
 titi.speed = 3