diff --git a/vectordb_bench/backend/clients/pgvector/cli.py b/vectordb_bench/backend/clients/pgvector/cli.py
index de001c2d..ef8914be 100644
--- a/vectordb_bench/backend/clients/pgvector/cli.py
+++ b/vectordb_bench/backend/clients/pgvector/cli.py
@@ -49,6 +49,7 @@ class PgVectorTypedDict(CommonTypedDict):
                      type=int,
                      help="Postgres database port",
                      default=5432,
+                     show_default=True,
                      required=False
                      ),
     ]