diff --git a/aiomysql/connection.py b/aiomysql/connection.py
index 0dc7686d..1093bcd2 100644
--- a/aiomysql/connection.py
+++ b/aiomysql/connection.py
@@ -209,6 +209,8 @@ def __init__(self, host="localhost", user=None, password="",
         # user
         self._close_reason = None
 
+        self._auth_plugin_name = ""
+
     @property
     def host(self):
         """MySQL server IP address or name"""
@@ -756,6 +758,7 @@ def _get_server_information(self):
             i += salt_len
 
         i += 1
+
         # AUTH PLUGIN NAME may appear here.
         if self.server_capabilities & CLIENT.PLUGIN_AUTH and len(data) >= i:
             # Due to Bug#59453 the auth-plugin-name is missing the terminating