diff --git a/tests/benchmark/milvus_benchmark/main.py b/tests/benchmark/milvus_benchmark/main.py
index 730c5785b7..829cc4b851 100644
--- a/tests/benchmark/milvus_benchmark/main.py
+++ b/tests/benchmark/milvus_benchmark/main.py
@@ -153,6 +153,8 @@ def main():
         '--port',
         help='server port param for local mode',
         default='19530')
+
+    # Client configuration file
     arg_parser.add_argument(
         '--suite',
         metavar='FILE',