diff --git a/tests/test_connection.py b/tests/test_connection.py
index 4ea408c06e67..4fc965e4c502 100644
--- a/tests/test_connection.py
+++ b/tests/test_connection.py
@@ -1378,7 +1378,7 @@ def test_funding_external_wallet_corners(node_factory, bitcoind):
     try:
         l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
     except RpcError as err:
-        assert "disconnected during connection" in err.error
+        assert "disconnected during connection" in err.error['message']
 
     l1.daemon.wait_for_log('Responded to reestablish for long-closed channel')
     wait_for(lambda: len(l1.rpc.listpeers()['peers']) == 0)