diff --git a/tests/test_onion_message.py b/tests/test_onion_message.py
index 9f6a65fe1..d8e65b9ff 100644
--- a/tests/test_onion_message.py
+++ b/tests/test_onion_message.py
@@ -434,7 +434,7 @@ class TestOnionMessageManager(ElectrumTestCase):
         onionmsg = bfh(test_vectors['onionmessage']['onion_message_packet'])
         try:
             t.on_onion_message({
-                'blinding': bfh(test_vectors['route']['first_path_key']),
+                'path_key': bfh(test_vectors['route']['first_path_key']),
                 'len': len(onionmsg),
                 'onion_message_packet': onionmsg
             })