diff --git a/src/promptflow-devkit/promptflow/_proxy/_python_inspector_proxy.py b/src/promptflow-devkit/promptflow/_proxy/_python_inspector_proxy.py
index 6ee0a21fa41..9858e832724 100644
--- a/src/promptflow-devkit/promptflow/_proxy/_python_inspector_proxy.py
+++ b/src/promptflow-devkit/promptflow/_proxy/_python_inspector_proxy.py
@@ -36,10 +36,7 @@ def get_entry_meta(
         **kwargs,
     ) -> Dict[str, Any]:
         timeout = kwargs.get("timeout", FLOW_META_JSON_GEN_TIMEOUT)
-        load_in_subprocess = (
-            kwargs.get("load_in_subprocess", True)
-            and os.environ.get(PF_FLOW_META_LOAD_IN_SUBPROCESS, "True").lower() == "true"
-        )
+        load_in_subprocess = os.environ.get(PF_FLOW_META_LOAD_IN_SUBPROCESS, "True").lower() == "true"
 
         flow_dag = {"entry": entry}
         # generate flow.json only for eager flow for now