diff --git a/influxdb/client.py b/influxdb/client.py
index 8f8b14ae..fbb54b45 100644
--- a/influxdb/client.py
+++ b/influxdb/client.py
@@ -91,7 +91,7 @@ def __init__(self,
         self._verify_ssl = verify_ssl
 
         self.__use_udp = use_udp
-        self.__udp_port = udp_port
+        self.__udp_port = int(udp_port)
         self._session = requests.Session()
         adapter = requests.adapters.HTTPAdapter(
             pool_connections=int(pool_size),