diff --git a/artiq/coredevice/urukul.py b/artiq/coredevice/urukul.py
index 750993eed..9d8caed20 100644
--- a/artiq/coredevice/urukul.py
+++ b/artiq/coredevice/urukul.py
@@ -88,7 +88,8 @@ CS_DDS_CH3 = 7
 
 
 class CPLD:
-    def __init__(self, dmgr, spi_device, io_update_device, dds_reset_device,
+    def __init__(self, dmgr, spi_device, io_update_device,
+            dds_reset_device=None,
             refclk=100e6, core_device="core"):
 
         self.core   = dmgr.get(core_device)
diff --git a/artiq/examples/master/device_db.py b/artiq/examples/master/device_db.py
index 95ec6a482..b9b38188d 100644
--- a/artiq/examples/master/device_db.py
+++ b/artiq/examples/master/device_db.py
@@ -203,12 +203,6 @@ device_db = {
         "class": "TTLOut",
         "arguments": {"channel": 33}
     },
-    "ttl_urukul_dds_reset": {
-        "type": "local",
-        "module": "artiq.coredevice.ttl",
-        "class": "TTLOut",
-        "arguments": {"channel": 34}
-    },
     "ttl_urukul_sw0": {
         "type": "local",
         "module": "artiq.coredevice.ttl",
@@ -240,7 +234,6 @@ device_db = {
         "arguments": {
             "spi_device": "spi_urukul",
             "io_update_device": "ttl_urukul_io_update",
-            "dds_reset_device": "ttl_urukul_dds_reset",
             "refclk": 100e6
         }
     },