diff --git a/cmdserver/pjcontroller.py b/cmdserver/pjcontroller.py
index 01a7be0..5c55b51 100644
--- a/cmdserver/pjcontroller.py
+++ b/cmdserver/pjcontroller.py
@@ -35,7 +35,9 @@ def __init__(self, config, mqtt: Optional[MQTT]):
             from twisted.internet import task
             self.__looping = task.LoopingCall(self.refresh)
             logger.info(f'Initiating PJ refresh every 20s')
-            self.__looping.start(20, now=False)
+            d = self.__looping.start(20, now=False)
+            from twisted.python import log
+            d.addErrback(log.err)
 
     def refresh(self) -> Deferred:
         return threads.deferToThread(self.__update_state)