diff --git a/cavegui.py b/cavegui.py
index a8eb092..61c6e7c 100644
--- a/cavegui.py
+++ b/cavegui.py
@@ -48,12 +48,12 @@ def previous(event):
 
 def left(event, step):
   global plan, index
-  plan[index] = (round(plan[index][0] + step, 3), plan[index][1], plan[index][2])
+  plan[index] = (round(plan[index][0] + step, 2), plan[index][1], plan[index][2])
   voler_selon(plan)
 
 def right(event, step):
   global plan, index
-  plan[index] = (round(plan[index][0] - step, 3), plan[index][1], plan[index][2])
+  plan[index] = (round(plan[index][0] - step, 2), plan[index][1], plan[index][2])
   voler_selon(plan)
 
 def up(event):