diff --git a/src/Tools/YamsPlug/monViewText.py b/src/Tools/YamsPlug/monViewText.py
index 426467ef4..45115e68d 100644
--- a/src/Tools/YamsPlug/monViewText.py
+++ b/src/Tools/YamsPlug/monViewText.py
@@ -108,7 +108,7 @@ class MonViewText(Ui_ViewExe, QDialog):
 
     def readFromStdOut(self) :
         a=self.monExe.readAllStandardOutput()
-        aa=unicode(a.data(),len(a))
+        aa=unicode(a.data())
         self.TB_Exe.append(aa)
         if "END_OF_MGSurfOpt" in aa:
           self.parent().enregistreResultat()