diff --git a/fleetrec/core/utils/envs.py b/fleetrec/core/utils/envs.py
index 53d68ce4c43be2cc468a9118d0ffdcf498a761a2..79383172ca6dea8bccddba0e27a9d792d3ae7876 100644
--- a/fleetrec/core/utils/envs.py
+++ b/fleetrec/core/utils/envs.py
@@ -22,7 +22,7 @@ def set_runtime_envions(envs):
     assert isinstance(envs, dict)
 
     for k, v in envs.items():
-        os.environ[k] = v
+        os.environ[k] = str(v)
 
 
 def get_runtime_envion(key):
diff --git a/fleetrec/run.py b/fleetrec/run.py
index 4fe2841ac587c0dab271f4d0c06a002a64e5cf0d..2dc8e1dc90abb655c470fd879dbe1f62e1b55d6a 100644
--- a/fleetrec/run.py
+++ b/fleetrec/run.py
@@ -20,13 +20,14 @@ def single_engine(single_envs, model_yaml):
 
 def local_cluster_engine(cluster_envs, model_yaml):
     print(envs.pretty_print_envs(cluster_envs, ("Local Cluster Envs", "Value")))
-
+    envs.set_runtime_envions(cluster_envs)
     launch = local_engine.Launch(cluster_envs, model_yaml)
     launch.run()
 
 
 def local_mpi_engine(cluster_envs, model_yaml):
     print(envs.pretty_print_envs(cluster_envs, ("Local MPI Cluster Envs", "Value")))
+    envs.set_runtime_envions(cluster_envs)
     print("coming soon")