diff --git a/sgl-model-gateway/bindings/python/src/sglang_router/router.py b/sgl-model-gateway/bindings/python/src/sglang_router/router.py
index de81cfce3e55..7d37da6f53bb 100644
--- a/sgl-model-gateway/bindings/python/src/sglang_router/router.py
+++ b/sgl-model-gateway/bindings/python/src/sglang_router/router.py
@@ -285,6 +285,7 @@ def from_args(args: RouterArgs) -> "Router":
         # Remove fields that shouldn't be passed to Rust Router constructor
         fields_to_remove = [
             "mini_lb",
+            "test_external_dp_routing",
             "oracle_wallet_path",
             "oracle_tns_alias",
             "oracle_connect_descriptor",