diff --git a/python/swiftest/swiftest/simulation_class.py b/python/swiftest/swiftest/simulation_class.py
index 53f9669e2..cdd89a98f 100644
--- a/python/swiftest/swiftest/simulation_class.py
+++ b/python/swiftest/swiftest/simulation_class.py
@@ -922,7 +922,6 @@ def set_integrator(self,
                     self.driver_executable = None
                 else:
                     if self.binary_path.exists():
-                        shutil.copy(self.binary_source, self.driver_executable) 
                         self.driver_executable.resolve()
             else:
                 self.binary_path = "NOT IMPLEMENTED FOR THIS CODE"