diff --git a/src/katcp_wrapper.py b/src/katcp_wrapper.py
index 9bcd060..cbad0c5 100755
--- a/src/katcp_wrapper.py
+++ b/src/katcp_wrapper.py
@@ -83,7 +83,8 @@ def __init__(self, host, port=7147, tb_limit=20, timeout=10.0, logger=log):
         super(FpgaClient, self).__init__(host, port, tb_limit = tb_limit, timeout = timeout, logger = logger)
         self.host = host
         self._timeout = timeout
-        self.start(daemon = True)
+        self.setDaemon(True)
+        self.start()
 
         # async stuff
         self._nb_request_id_lock = threading.Lock()