diff --git a/main.py b/main.py
index 594e0fd606ba3f20cd61db826c939b2d54b24f24..38c2b87048f93821c111982625649b88a54f7fb8 100755
--- a/main.py
+++ b/main.py
@@ -63,7 +63,7 @@ if __name__ == "__main__" :
     help="Evolution of probability to chose action at random : (start value, decay speed, end value)")
   parser.add_argument("--probaOracle", default="0.3,2,0.0",
     help="Evolution of probability to chose action from oracle : (start value, decay speed, end value)")
-  parser.add_argument("--probaStateBack", default="0.0,20,1.0-1.0,20,0.0",
+  parser.add_argument("--probaStateBack", default="0.6,04,0.1-0.3,2,0.0",
     help="Evolution of probability to chose action in state Back with random and oracle.")
   parser.add_argument("--countBreak", default=1,
     help="Number of unaplayable transition picked before breaking the analysis.")