diff --git a/mlos_bench/mlos_bench/services/local/local_exec.py b/mlos_bench/mlos_bench/services/local/local_exec.py
index f09ff67e05c..2ca567dfd45 100644
--- a/mlos_bench/mlos_bench/services/local/local_exec.py
+++ b/mlos_bench/mlos_bench/services/local/local_exec.py
@@ -195,10 +195,8 @@ def _local_exec_script(self, script_line: str,
         cmd = [token for subcmd in subcmds for token in subcmd]
 
         env: Dict[str, str] = {}
-        # Need to include at least some basic environment variables to run the script.
-        env["PATH"] = environ["PATH"]
         if env_params:
-            env.update({key: str(val) for (key, val) in env_params.items()})
+            env = {key: str(val) for (key, val) in env_params.items()}
 
         if sys.platform == 'win32':
             # A hack to run Python on Windows with env variables set: