diff --git a/dap/utils/bsreadext.py b/dap/utils/bsreadext.py
index 185ead2..5843428 100644
--- a/dap/utils/bsreadext.py
+++ b/dap/utils/bsreadext.py
@@ -1,12 +1,12 @@
 import numpy as np
-from bsread import Sender, PUB
+from bsread import Sender, PUSH
 
 
 def make_bsread_sender(host="*", port=None):
     if not port:
         return None
     address = f"tcp://{host}"
-    sender = Sender(address=address, port=port, block=False, mode=PUB)
+    sender = Sender(address=address, port=port, block=False, mode=PUSH)
     sender.open()
     return sender