diff --git a/python/pyspark/rdd.py b/python/pyspark/rdd.py
index ccf39e1ffbe9..f1de286d57ea 100644
--- a/python/pyspark/rdd.py
+++ b/python/pyspark/rdd.py
@@ -141,7 +141,9 @@ def _parse_memory(s):
 
 
 def _load_from_socket(sock_info, serializer):
-    (sockfile, sock) = local_connect_and_auth(*sock_info)
+    port = sock_info[0]
+    auth_secret = sock_info[1]
+    (sockfile, sock) = local_connect_and_auth(port, auth_secret)
     # The RDD materialization time is unpredicable, if we set a timeout for socket reading
     # operation, it will very possibly fail. See SPARK-18281.
     sock.settimeout(None)