diff --git a/src/python/antares_xpansion/antares_driver.py b/src/python/antares_xpansion/antares_driver.py
index d98953170..65b7634c6 100644
--- a/src/python/antares_xpansion/antares_driver.py
+++ b/src/python/antares_xpansion/antares_driver.py
@@ -107,9 +107,9 @@ def _set_simulation_name(self):
     def _get_antares_cmd(self):
         cmd = [str(self.antares_exe_path), self.data_dir, self.ANTARES_N_CPU_OPTION, str(self.antares_n_cpu), self.zip_option]
         if self.use_xpress:
-            cmd.extend(["--use-ortools", "--ortools-solver=xpress"])
+            cmd.extend(["--solver=xpress"])
         else:
-            cmd.extend(["--use-ortools", "--ortools-solver=sirius"])
+            cmd.extend(["--solver=sirius"])
         simulator_version = version.parse(__antares_simulator_version__)
         simulator_version_with_named_mps = version.parse(self.FIRST_VERSION_WITH_NAMED_PROBLEMS)
         if (simulator_version.major > simulator_version_with_named_mps.major) or (simulator_version.major >= simulator_version_with_named_mps.major and simulator_version.minor >= simulator_version_with_named_mps.minor):