diff --git a/tests/test_lightningd.py b/tests/test_lightningd.py
index 6da6f1a9a..3308cd60c 100644
--- a/tests/test_lightningd.py
+++ b/tests/test_lightningd.py
@@ -103,8 +103,6 @@ class NodeFactory(object):
                 with open(os.path.join(lightning_dir, "dev_disconnect"), "w") as f:
                     f.write("\n".join(disconnect))
                 daemon.cmd_line.append("--dev-disconnect=dev_disconnect")
-            # TODO(cdecker) Move into LIGHTNINGD_CONFIG once legacy daemon was removed
-            daemon.cmd_line.append("--dev-broadcast-interval=1000")
             rpc = LightningRpc(socket_path, self.executor)
 
         node = utils.LightningNode(daemon, rpc, bitcoind, self.executor)
diff --git a/tests/utils.py b/tests/utils.py
index b123c01c6..a01af7f70 100644
--- a/tests/utils.py
+++ b/tests/utils.py
@@ -214,6 +214,8 @@ class LightningD(TailableProc):
             '--lightning-dir={}'.format(lightning_dir),
             '--port={}'.format(port),
             '--disable-irc',
+            '--network=regtest',
+            '--dev-broadcast-interval=1000',
         ]
 
         self.cmd_line += ["--{}={}".format(k, v) for k, v in LIGHTNINGD_CONFIG.items()]
@@ -235,6 +237,8 @@ class LegacyLightningD(LightningD):
     def __init__(self, *args, **kwargs):
         LightningD.__init__(self, *args, **kwargs)
         self.cmd_line[0] = 'daemon/lightningd'
+        # Filter out non-legacy options
+        self.cmd_line = [c for c in self.cmd_line if '--network' not in c and '--dev-broadcast-interval' not in c]
 
     def start(self):
         TailableProc.start(self)