diff --git a/www/js/backend.js b/www/js/backend.js
index b011f81..2907280 100644
--- a/www/js/backend.js
+++ b/www/js/backend.js
@@ -228,7 +228,6 @@ function update() {
         Block.Time -= (Date.now() - Block.last_time)
         Block.last_time = Date.now()
         if (Block.Time <= 0){// si le block est fini
-            trais = !trais; //empecher l'inversion du trais
             load_cube_scene()
         }