diff --git a/artiq/master/worker.py b/artiq/master/worker.py
index c0c5c95a1..fb1752aed 100644
--- a/artiq/master/worker.py
+++ b/artiq/master/worker.py
@@ -42,7 +42,7 @@ def log_worker_exception():
 
 
 class Worker:
-    def __init__(self, handlers=dict(), send_timeout=0.5):
+    def __init__(self, handlers=dict(), send_timeout=1.0):
         self.handlers = handlers
         self.send_timeout = send_timeout