diff --git a/lsp-server/test/run_lsp_json_tests.py b/lsp-server/test/run_lsp_json_tests.py
index 68f5416..029860d 100644
--- a/lsp-server/test/run_lsp_json_tests.py
+++ b/lsp-server/test/run_lsp_json_tests.py
@@ -185,7 +185,7 @@ def main() -> int:
     messages = load_messages(request_dir, replacements, files)
 
     proc = subprocess.Popen(
-        [str(server_path), "--log=off", "--log-stderr"],
+        [str(server_path), "--log=off"],
         stdin=subprocess.PIPE,
         stdout=subprocess.PIPE,
         stderr=subprocess.PIPE,
diff --git a/lsp-server/test/test_provider/server_json_test.cppm b/lsp-server/test/test_provider/server_json_test.cppm
index 5be3e80..5012bda 100644
--- a/lsp-server/test/test_provider/server_json_test.cppm
+++ b/lsp-server/test/test_provider/server_json_test.cppm
@@ -248,7 +248,7 @@ namespace lsp::test::provider
             input_file << input_payload;
         }
 
-        std::string command = "\"" + server_path.string() + "\" --log=off --use-stdio < \"" +
+        std::string command = "\"" + server_path.string() + "\" --log=off < \"" +
                               input_path.string() + "\" > \"" + output_path.string() + "\"";
         int exit_code = std::system(command.c_str());
         assertEqual(0, exit_code, "tsl-server should exit successfully");