diff --git a/python/tvm/contrib/rpc/proxy.py b/python/tvm/contrib/rpc/proxy.py
index c7f66d68e492..e1e81d20b611 100644
--- a/python/tvm/contrib/rpc/proxy.py
+++ b/python/tvm/contrib/rpc/proxy.py
@@ -333,7 +333,7 @@ def _update_tracker(self, period_update=False):
                 rpc_key = key.split(":")[0]
                 base.sendjson(self._tracker_conn,
                               [TrackerCode.PUT, rpc_key,
-                              (self._listen_port, key), None])
+                               (self._listen_port, key), None])
                 assert base.recvjson(self._tracker_conn) == TrackerCode.SUCCESS
                 if rpc_key not in self._key_set:
                     self._key_set.add(rpc_key)